--- Do we have to hand in our research reports this afternoon, Professor Smith?--- Yes, you . I will be waiting to check them all the afternoon.A．shouldB．mayC．canD．must 题目和参考答案——青夏教育精英家教网—

题目内容

--- Do we have to hand in our research reports this afternoon, Professor Smith?
--- Yes, you _______ . I will be waiting to check them all the afternoon.

A．should

B．may

C．can

D．must

试题分析：——史密斯教授，我们必须今天下午上交我们的研究报告吗？
——是的，你们必须上交。下午我将要等待查看它们（研究报告）全部。
故应选D。A. should 应该 B. may 也许 C. can 能

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