I ________ use a clock to wake me up because at six o’clock each morning the tra
题型：不详难度：来源：
I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.| A．mustn’t | B．needn’t | C．shouldn’t | D．couldn’t |
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答案
| B |
解析
试题分析：句意：我不必使用钟来叫醒我，因为每天早上6点火车从我家旁边经过。四个选项的含义分别是：A. mustn’t 禁止，B. needn’t 不必，C. shouldn’t不应该，D. couldn’t不能，所以选B。 |
举一反三
She was greatly shocked at the scene before her eyes. Never did she expect that the local conditions ______ be so awful.| A．could | B．should | C．would | D．might |
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She is a quiet girl at school，but sometimes she _____ be very naughty.| A．should | B．would | C．will | D．can |
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---who______it be that is knocking at the door?
---It_______be Father, but I’m not sure.| A．can, must | B．can, may | C．must, can | D．may, must |
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Whether dying patients be helped to end their lives is a tough moral question.| A．must | B．should | C．might | D．would |
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My computer ____start, no matter how hard I try.
-lt might have crashed.| A．won"t | B．shouldn"t | C．mustn"t | D．wouldn"t |
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