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—____________you swim?????????????? ? —Yes，but I’m not a good swimmer.
A. Can????????????? ????????????? ????????????? ????????????? B. May????????????? ????????????? ????????????? ????????????? C. Need????????????? ????????????? ????????????? ????????????? D. Must
A. Can B. May C. Need D. Must
–––_____ you swim?
–––Yes, but I’m not a good swimmer．
A． Can B． May C． Need D． Must