your father ____be in his room.i saw him go out just now.A.can B.can't C.must D.mustn'tdid you find him___ in the lake when you passed by A.swim B.swimming C.swam D.to swimthe bus didn't ____ until 3:00p.m.A.get B.get to C.reach D.arrive

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your father ____be in his room.i saw him go out just now.A.can B.can't C.must D.mustn't
did you find him___ in the lake when you passed by A.swim B.swimming C.swam D.to swim
the bus didn't ____ until 3:00p.m.A.get B.get to C.reach D.arrive

第一题选B 第二题选B 第三题选D

B:ing表示你经过时,他发现正在游泳
D