B.C.D.四个选项中,选出一个适当的单词。1.Ann came into the dining room and took a _______/si﹕t/ near the window.A.sit suit set seat2.Our teacher goes on a picnic with us once a __________/wi﹕k/.A.waitB.weekC.whiteD.wake3.The ________/′hevi/ box landed in the middle of the roaD.A.heavyB.hardC.healthyD.hurry4.This maths _______/′/isn′t easy,I cant do it.A.programB.presentC.problem D. penguin5.There are some ________/keiks/ on thE.tablE.Please pass me two.A.kitesB.catsC.cagesD.cakes