问题描述：
( )you( )football yesterday?A.Do；play B.Did；play C.Did；played
Did you help （ ）clean（ ）room?A.their；them B.them；them C.them；their
Lucy usually（ ）her homework in the evening.A.do B.does C.did
Did you help （ ）clean（ ）room?A.their；them B.them；them C.them；their
Lucy usually（ ）her homework in the evening.A.do B.does C.did
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