You _____ pay your library fines. If not, you _____ not be allowed to graduate.A

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You _____ pay your library fines. If not, you _____ not be allowed to graduate.A

题型：不详难度：来源：
You _____ pay your library fines. If not, you _____ not be allowed to graduate.
A．may; shouldB．should; needC．must; willD．will; can

答案
C
解析
第一空可以用should或must，表示根据规定“应该；必须”，第二格只能用will，表示对目前或将来情况的推测。
举一反三
The pilot kept calm in the terrible storm, otherwise the accident ______.
A．couldn’t be prevented
B．mustn’t have prevented
C．wouldn’t have been prevented
D．shouldn’t prevent

题型：不详难度：| 查看答案
My aunt _____ here by now, for she took the early bus.
A．must arriveB．can arriveC．may arriveD．ought to have arrived

题型：不详难度：| 查看答案
You _____ phone him if you want to, but you _____! He will surely phone you.
A．may; mustn’tB．have to; needn’tC．can; needn’tD．can; doesn’t need

题型：不详难度：| 查看答案
The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
A．shan’tB．can’tC．needn’tD．mustn’t

题型：不详难度：| 查看答案
My MP4 player isn’t in my bag. Where        I have put it?
A．canB．mustC．shouldD．would

题型：不详难度：| 查看答案
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