你可能感兴趣的试题
play plays are playing playing
Two heads are better than one Birds of a feather flock together Bad fortunes never come singly. One boy a boy, two boys half boy, three boys no boy
exciting excite excited excitement
plays play are playing played
plays play are playing played
give it up give up it look it up look up it
except but however because
flies. flying is flying fly
send for send to look for look over
play playing are play are playing
is swim is swimming is swiming swims
playing are playing to play play
swim swam will swim are swimming
plays play are playing played
stopped to look at stop looking at stopped looking at stop to look at