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过点M(2,0)的直线l与抛物线C:y2=2px(p>0)交于A,B两点,O为坐标原点,OA⊥OB.(1)求p的值;(2)若l与坐标轴不平行,且A关于x轴的对称点为D,求证:直线BD恒过定点.
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高三下学期数学《》真题及答案
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The65﹣year﹣oldSteveGoodwinwasfoundsufferingfromearlyAlzheimer's阿尔兹海默症Hewaslosinghismemory. AsoftwareengineerbyprofessionStevewasakeenloverofthepianoandtheonlymusicianinhisfamily.Musicwashistruepassionthoughbehadneverperformedoutsidethefamily. Melissahisdaughterfeltitmorethanworthwhiletosavehismusictowhichshefellasleepeachnightwhenshewasyoung.Shethoughtabouthiringaprofessionalpianisttoworkwithherfather. NaomiMelissa'sbestfriendandatalentedpianistgottoknowaboutthisandshowedwillingnesstohelp. Whydothis?Stevewondered. Becauseshecares.Melissasaid. Stevenoddedtearineye. NaomidrovetotheGoodwinhomeshetoldSteveshe'dlovetohearhimplay.Stevemovedtothepianoandsatatthebenchhandstremblingashegentlyplacedhisfingersonthekeys. Naomiputasmallrecordernearthepiano.Startsandstopsandmistakes.Longpausesheartsinking.ButStevepressedonplayingforthefirsttimeinhislifeforastranger. ItwasbeautifulNaomisaidafterlisteningtotherecording.Themusicwasworthsaving. Herresponsibilityherprivilegewouldbetorescueit.ThemusicwasstillinSteveGoodwin.Itwasbiddeninroomswithdoorsabouttobelocked. NaomiandStevemeteveryotherweekandspenthourstogether.He'dmovehisfingersclumsilyonthepianoandthenshe'dtakehisplace.Hestruggledtoexplainwhatheheardinhishead.Hestoodbythepianoeyesclosedlisteningforthefirsttimetohisownworkbeingplayedbysomeoneelse. SteveandNaomispokeinmusicalcode:linesbeatsintervalsmovingfromtheroottoendasonginanewkey.Steveheardit.Allofit.Hejustcouldn'tplayit. WorkingwithNaomididwondersforSteve.Ithadexcitedwithinhimthebeliefhecouldwriteonelastsong.OnedayNaomireceivedanemail.Attachedwasarecordingarecordingoflossandloveofthefight.StevecalleditMelancholyFlower. NaomiheardmultiplestopsandstartsStevestrugglingsearchingwhilehiswifeJonicalledhimhoneyandencouragedhim.ThetaskwassohardandSteveangryandupsetsaidhewasquitting.Jonipraisedhimtellingherhusbandthiscouldbehissignaturepiece. Naomimanagedtofigureout16ofSteve'sfavoriteandmostpersonalsongs.WithNaomi'shelptheGoodwinfamilyfoundasoundengineertorecordNaomiplayingSteve'sgongs.Jonithoughtthatwouldbetheend.Butitwasn't. Inthemonthsleadinguptothe2016OregonRepertorySingersChristmasconcertNaomitoldthedirectorshehadaspecialoneinmind:MelancholyFlower. ShetoldthedirectoraboutherprojectwithSteve.Thedirectoragreedtoaddittotheplayinglist.ButNaomiwouldhavetoaskSteve'spermission.Heconsidereditanhonor. AftertheconcertNaomitoldthefamilythatSteve'smusicwasbeautifulandprofessional.Itneededtobesharedinpublic. ThefamilyrentedaformerchurchindowntownPortlandandscheduledaconcert.Bythedayoftheshowmorethan300peoplehadsaidtheywouldattend. BythenStevewashavingahardtimerememberingthenamesofsomeofhisfriends.Heknewthepathhislifewasnowtaking.Hetoldhisfamilyhewasatpeace. Stevearrivedandsatinthefrontrowsurroundedbyhisfamily.Thehouselightsfaded.Naomitookthestage.Herfingers.Hisheart. 1WhydidMelissawanttosaveherfather'smusic? A.Hismusiccouldstophisdiseasefromworsening. B.Shewantedtopleaseherdyingoldfather. C.Hismusicdeservedtobepreservedinthefamily. D.Shewantedtomakeherfatheraprofessional. 2AfterhearingSteve'splayingNaomi. A.refusedtomakeacommentonit B.wasdeeplyimpressedbyhismusic C.decidedtofreeStevefromsuffering D.regrettedofferinghelptoherfriend 3HowcantheprocessofSteve'srecordingbedescribed? A.Itwasslowbutproductive. B.Itwasbeneficialtohishealth. C.ItwastiresomeforNaomi. D.ItwasvitalforNaomi'scareer. 4BeforeStevefinishedMelancholyFlowerhiswifeJoni. A.thoughtthemusictalentofStevewasexhausted B.didn'texpectthedamagethediseasebroughtabout C.didn'tfullyrealizethevalueofherhusband'smusic D.broughtherhusband'smusiccareertoperfection 5HowdidStevefeelattheconcertheldindowntownPortland? A.Hefeltconcernedabouthisillness. B.Hesensedaresponsibilityformusic. C.Heregainedhisfaithinmusic. D.Hegotintoastateofquiet. 6Whatcanbeasuitabletitleforthepassage? A.TheKindnessofFriends B.ThePowerofMusic C.TheMakingofaMusician D.TheValueofDetermination
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假定你是王鹏你的美国朋友John对茶感兴趣.请你用英语给他写一封邮件诚邀他参加2019年5月3日﹣5月6日在宁波举办的第十届国际茶文化节the10thInternationalTeaCultureFestival并简要介绍你对茶的认识和了解. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯. DearJohn Yours WangPeng
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Wildlifehasbeengreatlythreatenedinthemodernage.Therearespecies物种thatare1everyday.Thewhite﹣napedcraneisatypicalexample.Soscientistsaretryingtheirbestto2thespeciesfromgoingoutofexistence. ChrisandTimworkatazoohelpingendangeredcraneswiththeir3.Emmaafemalecranehasbeenintheir4sinceshearrivedin2004. BornataninternationalcranefoundationEmmawas5byhumancaretakers.Thisledtoanunexpected6thoughshehadawonderfultimethere.Emmahad7takenherselfasacraneandbecomedeeplyattachedtohumans.She8tolivewithmalecranesandevenhada9forkillingsomeofthemwhichmadeit10forhertobecomeamother. 11thetwozookeepersdidn'twanttoseetheextinction灭绝ofthispreciousspecies.Withtheirpatienceandeffortstheysuccessfullydevelopeda12ofartificialbreeding人工繁殖andnaturalreproduction.This13Emmatogivebirthtofivebabycranes. Thetwokeepersareproudoftheirproductivework.Butbeforetheycanbe14moreeffortsmustbemadebecausethepopulationofthecraneinthewildisonthe15andmanyotherspeciesappearheadedtowardextinction.16noteveryonehasrealizedthatwildlifehasthoughtsfeelingsandmostimportantlyequalrightstosurvive. Howcanwe17theever﹣wideninggapthatseparatesusfromotheranimals?ChrisandTimofferedusthe18:humanbeingstookitforgrantedthattheir19heldallthesolutionsbutmaybetheirheartscanbeabetter20. 1A.growing B.migrating C.competing D.disappearing 2A.ban B.save C.split D.remove 3A.abortion B.recreation C.reproduction D.administration 4A.care B.eye C.mind D.story 5A.found B.chosen C.raised D.seized 6A.bonus B.consequence C.victory D.sacrifice 7A.never B.always C.unluckily D.cheerfully 8A.liked B.refused C.decided D.hesitated 9A.gift B.skill C.concern D.reputation 10A.illegal B.inspiring C.important D.impossible 11A.Therefore B.Moreover C.However D.Instead 12A.combination B.collection C.strategy D.system 13A.forced B.forbade C.taught D.enabled 14A.defeated B.grateful C.assured D.tolerant 15A.list B.rise C.agenda D.decline 16A.Incontrast B.Afterall C.Bytheway D.Onthecontrary 17A.leave B.bridge C.open D.identify 18A.course B.excuse C.answer D.reward 19A.brains B.behaviors C.services D.projects 20A.guide B.treat C.example D.companion
二醚水蒸气重整制氢过程涉及的主要反应如下 ⅠCH3OCH3g+H2Og═2CH3OHg△H=+23.6kJ•mol﹣1 ⅡCH3OHg+H2Og═CO2g+3H2g△H=+49.5kJ•mol﹣1 ⅢCH3OHg═COg+2H2g△H=+90.7kJ•mol﹣1 ⅣH2Og+COg=CO2g+H2g△H=﹣41.2kJ•mol﹣1 各反应平衡常数与温度变化关系如下表 1重整反应CH3OCH3g+3H2Og═2CO2g+6H2g△H=xkJ•mol﹣1回答下列问题 ①x= ②有利于提高重整反应中CH3OCH3平衡转化率的条件为填标号. A.高温低压B.低温__C.高温__D.低温低压 ③若在恒温刚性容器中进行重整反应达到平衡时[CH3OCH3]=10ml•L﹣1[H2O]=0.2mol•L﹣1[H2]=10mol•L﹣1[CO2]=40mol•L﹣1则反应温度约为. ④723K时v=k•[cCH3OCH3]2•[cCO2]﹣1.5为重整反应速率方程.在相同条件下cCO2分别为abc时H2产率随时间的变化关系如图1则abc由小到大的顺序为. 2CO会造成燃料电池催化剂中毒重整反应体系中CO体积分数随水醚比与温度的变化关系如图2. ①相同温度下水醚比为时CO体积分数最高. ②实际生产中选择反应温度为250℃的原因为选择水醚比为3~6的原因为.
FrostValleyYMCAisavalues﹣drivenorganizationthatencouragesyouthdevelopmenthealthylivingandsocialresponsibilitythroughoutdooreducationalandrecreationalprogramsforall.Thisaimisguidedbyoureightcorevalueswhichserveaspathwaysforourguestsastheybondwithnatureandeachother.Theyare:CaringCommunityDiversityHonestyInclusivenessRespectResponsibilityandDevotion.Learnmoreaboutourwonderfulprograms. Weoffer: BearGryllsSurvivalAcademyCamp﹣Doyouhavewhatittakestosurviveinthewilderness?Findoutintheworld'sfirstBearGryllsSurvivalCampforkids!Searchforfoodbuildshelterslearndynamicself﹣rescueandmuchmore! Counselor﹣in﹣TrainingPrograms﹣Isyourteenreadyformoreresponsibilityandtheindependenceofcollegeand/orapart﹣timejob.OurCiTslearnleadershipskillstogainresponsibilitywhilealsoparticipatinginthecharacter﹣buildingwholesomeactivitiesthatmakesummercampsospecial. MainstreamingatCamp﹣InpartnershipwiththeYoungAdultInstitutecamperswithdiverseabilitiesareacceptedinthetraditionalcampsettingalongsidetheirpartnersinanenvironmentthatencouragesgrowthforall. ClarkeSchoolPartnership﹣InpartnershipwiththeClarkeschoolcamperswithhearinglosswhocommunicateorallyarewelcomedintothecampcommunityforatraditionalcampopportunitywhereallchildrencangrowtogether. Callustodaytospeakwithourregistrarsaboutthebestfitforyourchildorteentoday!845﹣985﹣2291ext.203oremailcampregistrationfrostvalley.org. 1WhatisFrostValleyYMCAaimedat? A.Inspireyouthgrowthhealthylifestyleandresponsibility. B.Learnaboutcultures. C.Experienceatraditionalcamp. D.Helpbuildthecharacterofleadership. 2Whichcampwillyouchooseifyouwanttolearntosurviveinthewild? A.ClarkeSchoolPartnership. B.Counselor﹣in﹣TrainingPrograms. C.MainstreamingatCamp. D.BearGryllsSurvivalAcademyCamp. 3Fromwhichisthetextprobablytaken? A.Ayouthmagazine. B.Acampwebsite. C.Atravelbrochure. D.Aneducationalnewspaper.
Therearealwaysthosetimeswhenthere'ssomeoneannoyingusoverandover.1Evenwhenwecanbreakitoffweneedtodoitinawaythatwon'tcausetheirangertomakethingsevenworse.Handlingpeoplewedon'tlikerequiresthatwebothbesensitivetoourownneedsandthoseofthepeoplearoundus. 1.Don'treact. Oftenpeoplewillbotheryoutogetareaction.Trytoavoidblowinguporexpressingyourdiscontentnon﹣verbally.2Ordon'tmutter嘟囔thingsunderyourbreathorelseyoumightfeedthefire.Rememberthatsilencedoesnotmakeyouweak. 3Thinkaboutthebigpicture.Gettingintoaphysicalconfrontation冲突couldcostyouyourhealthyourjoboryoureducation.Rememberwhatreallymattersandtrytoputthesesmallannoyancesinperspective. 2.4 Ifyoucanfeelaconflictcomingbringingupsomethingdifferentcanbeagoodwaytodistractsomeone.Oftenannoyingpeoplewillbeaggressivedespitebeingobviouslywrongbecausetheyseetheconfrontationasabattleofegos自我.5 Ifforexamplesomeoneisinvadingyourspacetrydirectinghimtosomethinginyoursurroundingsthatisfunnyorinteresting.Ifsomeoneispestering纠缠youwithanannoyingtopicofconversationtrytobringupsomethingelsethatyouknowwillinterestthem. A.Beflexible. B.Changethesubject. C.Don'tpretendtoignoreit. D.Don'trollyoureyesormakemeanfaces. E.Yetweoftenhavenochoicebuttodealwiththem. F.Takeafewdeepbreathsandfocusonyourbreathingtocalmyourself. G.Onceyou'vestoppedtheirangertheymightnolongerfeeltheneedtoannoyyou.
XYZM为短周期元素原子序数依次增大YM同主族X的简单氢化物遇M单质产生白烟Z的氧化物与M的氢化物不反应可与Y的氢化物反应.下列说法正确的是
Nowadaysthefortravellingisshiftedfromshoppingtofoodandscenery. A.priority B.potential C.proportion D.pension
Twothingschangedmylife:mymotherandawhiteplasticbikebasket.Ihavethoughtlongandhardaboutitandit'strue.Iwouldbeadifferentpersonifmymomhadn'tturnedasillybicycleaccessoryintoalifelessonIcarrywithmetoday. Mymotherandfatherwereunitedintheirwayofraisingchildrenbutitmostlyfelltomymothertoactuallycarryitout.LookingbackIhonestlydon'tknowhowshedidit.Managingthefamilybudgetmusthavebeenaveryhardtask.butshemadeitlookeffortless.Ifwecomplainedaboutnothavingwhatanotherkiddidwe'dhearsomethinglikeIdon'tcarewhatso﹣and﹣sogotforhisbirthdayyouarenotgettingaTVinyourroomacarforyourbirthdayalsvishsweet16party.Wehadtoearnourallowance零用钱bydoingchoresaroundthehouse.Icanstillrememberhowlongittooktopolishthelegsofourcoffeetable.Mybrotherscannodoubtrememberhoursspentcleaningthehouse.LikethetwolittlegirlsgrowingupattheWhiteHousewemadeourownbedsnooneleftthehouseunitilthatwasdoneandpickedupafterourselves.Wehadtokeeptrackofourbelongingsandifsomethingwaslostitwasnotreplaced. Itwassummerandonedaymymotherdrovemetothebikeshoptogetatirefixed﹣﹣﹣andthereitwasinthewindowWhiteshinyplasticanddecoratedwithflowersthebasketwinkedatmeandIknew﹣﹣﹣﹣Iknew﹣﹣﹣Ihadtohaveit. It'sbeautifulmymothersaidwhenIpointeditouttoherWhataneatbasket. ItriedtoholdoffatfirstIplayeditcoolforashortwhile.ButthenIguessIcouldn'tatanditanylonger:MonpleasecanIpleasepleasegetit?I‘lldoextrachoresforaslongasyousayI'lldoanythingbutIneedthatbasketIlovethatbasket.PleaseMom.Please? Iwasdesperate. YouknowshesaidgentlyrubbingmybackwhilewebothstaredatwhatIbelieveswasthecoolestthingeverIfyousaveupyoucouldbuythisyourself. BythetimeImakeenoughit'llbugone! MaybeRogerherecouldholditforyoushesmiledatRogerthebikeguy. Hecan'tholditforthatlongMom.Someoneelsewillbuyit.PleaseMomPlease? Theremightbeanotherwayshesaid. Andsoourpayingplanunfolded.MymotherboughtthebeautifulbasketandputitsafelyinsomehidingplaceIcould'tfind.EachweekIeagerlycountedmygrowingsavingincreasedbyextraworkhereandtherewashingthecarhelpingmymothermakedinnerdeliveringorcollevtingthingsonmybikethatalreadylookednakedwithoutthebasketinfront.AndthenweekslaterIcountedre﹣countedandjumpedforjoy.Ohhappyday!Imadeit!Ifinallyhadtheexactamountwe'dagreedupon…. Dayslatertheunthinkablehappened.AneighborhoodgirlI'dplayedwithmillionsoftimesappearedwiththeexactsamebasketfixtedtohershinynewbikethatalreadyhadallthebellsandwhistles.Irodehardandfasthometotellmymotheraboutthisdisaster.Thishorribleturnofevents. Andthencamethelesson.I'vetakenwithmethroughmylife:HoneyYourbasketisextra﹣specialMomsaidgentlywipingawaymyhottears.Yourbasketisspecialbecauseyoupaidforityourself. 55.Whatcanwelearnfromthefirsttwoparagraphs? A.Thechildrenenjoyeddoinghousework. B.Theauthorcamefromswell﹣offfamily C.Themotherraisedherchildreninanunusualway D.ThechildrenwerefondoftheUSpresident'sdaughters. 56.Whentheauthorsawthebasketinthewindowshe. A.fellinlovewithit B.staredathermother C.recognizeditatonce D.wentuptothebikeguy 57.Whydidtheauthorsaymanypleasetohermother? A.Shelongedtodoextrawork. B.Shewaseagertohavethebasket. C.Shefelttiredafterstandingtoolong. D.Shewantedtobepolitetohermother. 58.ByusingnakedParagraph12theauthorseemstostressthatthebasketwas A.somethingshecouldafford B.somethingimportanttoher C.somethingimpossibletoget D.somethingshecoulddowithout 59.Totheauthoritseemedtobeahorribleturnofeventsthat A.somethingspoiledherpayingplan B.thebasketcostmorethanshehadsaved C.aneighborhoodgirlhadboughtanewbike D.someoneelsehadgotabasketofthesamekind 60.Whatisthelifelessontheauthorlearnedfromhermother? A.Savemoneyforarainyday B.Goodadviceisbeyondallprice. C.Earnyourbreadwithyoursweat D.Godhelpsthosewhohelpthemselves.
短周期主族元素XYZW原子半径依次增大W是短周期主族元意中原子半径最大的元素Z原子的核外电子数是X的两倍Z与X同主族Y与Z同周期.下列说法正确的是
Inthe1960swhilestudyingthevolcanichistoryofYellowstoneNationalParkBobChristiansenbecamepuzzledaboutsomethingthatoddlyhadnottroubledanyonebefore:hecouldn'tfindthepark'svolcano.IthadbeenknownforalongtimethatYellowstonewasvolcanicinnature﹣that'swhataccountedforallitshotspringsandothersteamyfeatures.ButChristiansencouldn'tfindtheYellowstonevolcanoanywhere. Mostofuswhenwetalkaboutvolcanoesthinkoftheclassiccone圆锥体shapesofaFujiorKilimanjarowhicharecreatedwheneruptingmagma岩浆pilesup.Thesecanformremarkablyquickly.In1943aMexicanfarmerwassurprisedtoseesmokerisingfromasmallpartofhisland.Inoneweekhewastheconfusedownerofaconefivehundredfeethigh.Withintwoyearsithadtoppedoutatalmostfourteenhundredfeetandwasmorethanhalfamileacross.AltogethertherearesometenthousandofthesevolcanoesonEarthallbutafewhundredofthemextinct.Thereishoweverasecondlessknowntypeofvolcanothatdoesn'tinvolvemountainbuilding.Thesearevolcanoessoexplosivethattheyburstopeninasinglebigcrackleavingbehindavastholethecaldera.YellowstoneobviouslywasofthissecondtypebutChristiansencouldn'tfindthecalderaanywhere. JustatthistimeNASAdecidedtotestsomenewhigh﹣altitudecamerasbytakingphotographsofYellowstone.Athoughtfulofficialpassedonsomeofthecopiestotheparkauthoritiesontheassumptionthattheymightmakeaniceblow﹣upforoneofthevisitors'centers.AssoonasChristiansensawthephotosherealizedwhyhehadfailedtospotthecaldera:almostthewholepark﹣22millionacres﹣wascaldera.Theexplosionhadleftaholemorethanfortymilesacross﹣muchtoohugetobeseenfromanywhereatgroundlevel.AtsometimeinthepastYellowstonemusthaveblownupwithaviolencefarbeyondthescaleofanythingknowntohumans. 1WhatpuzzledChristiansenwhenhewasstudyingYellowstone? A.Itscomplicatedgeographicalfeatures. B.Itsever﹣lastinginfluenceontourism. C.Themysterioushistoryofthepark. D.Theexactlocationofthevolcano. 2Whatdoesthesecondparagraphmainlytalkabout? A.Theshapesofvolcanoes. B.Theimpactsofvolcanoes. C.Theactivitiesofvolcanoes. D.Theheightsofvolcanoes. 3Whatdoestheunderlinedwordblow﹣upinthelastparagraphmostprobablymean? A.Hot﹣airballoon. B.Digitalcamera. C.Bigphotograph. D.Bird'sview.
Unliketraditionalgymsapp﹣backedgymsofferpeopleoptionstoexercise. A.casual B.regular C.flexible D.tight
theconvenienceofdigitalpaymentmanyseniorcitizensstartedtousesmartphones. A.Toenjoy B.Enjoying C.Tohaveenjoyed D.Enjoy
Theseating1arrangeisprobablythemostimportantpartofChinesediningetiquette礼仪.Moderndiningetiquetteisenacted进行发生accordingto2principles:themasterofthefeastandguests. Theseatofhonor2reserveforthemasterortheguestwiththehigheststatusistheonefacingeastortheentrance.Thoseofhigherpositionsitclosertothemaster.Theguestsofthelowestpositionsit3farfromtheseatofhonor. Ifroundtables4usetheseatfacingtheentranceisthehonorone.Theseatsonthelefthandsideoftheseatofhonoraresecondfourthsixthetc.inimportance5thoseontherightarethird6fiveseventhandsoonuntilthey7jointogether. Inancienttimestherewasakindoffurnitureknownas8EightImmortalstableabigsquaretablewithbenchesfortwopeopleonboth9side.Iftherewasaseatfacingtheentrancetherighthandseatwasfortheguestofhonor.Ifthemealwasoutsideorthereweretwoormoredoors10equalimportancethentherighthandseatwhenfacingeastwasthehonorseat.
Themusicianalongwithhisbandmemberstenperformancesinthelastthreemonths. A.gives B.hasgiven C.havegiven D.give
DuringthewarmyhusbandwasstationedatanarmycampinadesertinCalifornia.Iwenttolivethereinordertobe1him.Ihatedtheplace.Ihadnever2beensounhappy.Myhusbandwasorderedoutonalong﹣termdutyandIwasleftinatinyshack棚屋alone.Theheatwas3﹣almost1250Fevenintheshadeofacactus仙人掌.4asoultotalkto.Thewindblewnon﹣stopandallthefoodIateandtheevryairIbreathedwere5withsandsandsand! IwassosorryformyselfthatIwrotetomyparents.ItoldthemIwas6andcomingbackhome.IsaidIcouldn'tstanditoneminutelonger.I7beinprison!Myfatheransweredmy8withjusttwolines﹣twolinesthatwillalwayssinginmy9﹣twolinesthatcompletelychangedmylife: TwomenlookedoutfromprisonbarsOnesawthemudtheothersawthestars. Ireadthosetwolines10Iwasashamedofmyself.ImadeupmymindIwouldfindoutwhatwasgoodinmypresent11;Iwouldlookforthestars Imadefriendswiththenativesandtheir12amazedme.Theygavemepresentsoftheirfavoriteartworkswhichtheyhad13toselltotoueists.Istudiedthedelightfulformsofthecactus.Iwatchedforthedesertsunsetsand14forseashellsthathadbeenlefttheremillionsofyearsagowhenthedeserthadbeenanocean15 Whatbroughtaboutthis16changeinme?Thedeserthadn'tchanged17Ihad.Ihadchangedmy18AndbydoingsoIchangedanunhappyexperienceintothemostamazing19ofmylife.IwasexcitedbythisnewworldthatIhaddicoveredIhadlookedoutofmyself﹣creatdedprisonand20thestars 1A.off B.behind C.near D.beyond 2A.before B.already C.then D.still 3A.inflexible B.incomprehensible C.uncontrollable D.unbearable 4A.Only B.Not C.Many D.Such 5A.covered B.filled C.buried D.charged 6A.catchingup B.keepingup C.givingup D.gettingup 7A.oughtto B.mightwell C.wouldrather D.hadbetter 8A.request B.call C.question D.letter 9A.comparison B.imagination C.consideration D.memory 10A.overandover B.byandby C.upanddown D.noeandthen 11A.company B.occupation C.situation D.relationship 12A.movement B.reaction C.guidance D.purpose 13A.refused B.failed C.managed D.happened 14A.asked B.hunted C.waited D.headed 15A.floor B.surface C.rock D.level 16A.shocking B.challenging C.puzzling D.astonishing 17A.as B.but C.for D.or 18A.attitude B.principle C.identity D.standard 19A.vacation B.operation C.affair D.adventure 20A.sought B.counted C.found D.reached
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