题目内容
桵ust I return the book this morning?
桸o, you ________. But you ________to return it before next Monday.
A. needn't; must
B. mustn't; can
C. mustn't; may
D. needn't; need
答案:D
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题目内容
桵ust I return the book this morning?
桸o, you ________. But you ________to return it before next Monday.
A. needn't; must
B. mustn't; can
C. mustn't; may
D. needn't; need