题目内容
—May I hand in my test paper and leave now?
—No, you _______. You aren’t allowed to leave until the bell rings.
A. needn’t B. may not C. mustn’t D. shouldn’t
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题目内容
—May I hand in my test paper and leave now?
—No, you _______. You aren’t allowed to leave until the bell rings.
A. needn’t B. may not C. mustn’t D. shouldn’t