—What did your father do yesterday?
—He ____________ the floor.

A. clean
B. cleans
C. cleaned
D. cleaning
C
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科目：小學英語 來源：期中題 題型：單選題

— What did your father do yesterday?
— He ____________ the floor.
[     ]
A. clean
B. cleans
C. cleaned
D. cleaning

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