题目内容
—Must I return the book before Friday?
—You _____. You can keep it till next week.
A. can’t B. shouldn’t C. mustn’t D. don’t have to
D

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题目内容
—Must I return the book before Friday?
—You _____. You can keep it till next week.
A. can’t B. shouldn’t C. mustn’t D. don’t have to
D