题目内容


You _____ be 18 years old before you are allowed to drive a car ,and it’s also essential to get a driver’s license
A．couldB．mayC．canD．have to
D
略
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You promised your friend a letter; you ought to ______ days ago.
A．writeB．be writingC．have writtenD．be written
 Everyone _____ do his best to make the world safe and clean.  
A．can　　B．may　　C．should　D．hadto
---That must be a mistake.  ---No, it ___ a mistake.
A．must not beB．needn’t beC．cannot beD．may be not

With his good sense of direction, he _____ quickly and easily get round in the new city.
A．canB．mustC．shouldD．need
When he lived in the countryside, he ___ get up early.
A．usedB．wouldC．useD．should

29. A big earthquake hit Yushu, Qinghai province in the early morning, and if a little later, many more people _______.
A．could surviveB．might have survived
C．must have survivedD．should survive

. — You could have turned to the soldiers for help.
— Yes, but we ____ to manage it on our own. Who would think we would fail?
A．would hope B．hopedC．had hopedD．have been hoping

55. I can’t see John anywhere. Where _____ he have gone?
A．mayB．canC．mightD．Should

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