问题 选择题

----- __________it be Li Ping who broke the glass?

---- No. It __________ be Wu Dong who did it.

A.Could; may

B.Can; must

C.May; must

D.Can; can

答案

答案:B

考查情态动词。Can可能;must一定。句意:——打破杯子的可能是李平么?——不,一定是吴东做的。

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