题目内容
—_________ we keep the room clean enough all the time?
—No, you _________.
A. Must; doesn’t have to B. Do; don’t have to
C. Must; don’t have to D. Must; mustn’t
C
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题目内容
—_________ we keep the room clean enough all the time?
—No, you _________.
A. Must; doesn’t have to B. Do; don’t have to
C. Must; don’t have to D. Must; mustn’t
C