．-Margaret stay at home all day long in front of the TV.-That’ s right．She ought to go to the fitness center with us.A．couldn’tB．mustn’tC．needn’tD．shouldn’t 题目和参考答案——青夏教育精英家教网—

题目内容

．—Margaret ______ stay at home all day long in front of the TV.
—That’ s right．She ought to go to the fitness center with us.

A．couldn’t

B．mustn’t

C．needn’t

D．shouldn’t

考查情态动词。couldn’t 不可能，mustn’t 禁止，needn’t 没有必要，shouldn’t 不应该，句意：Margaret不应该整天呆在家看电视。是的，她应该和我们去健康中心。所以选D。

练习册系列答案

Without the air to hold some of the sun’s heat, the earth at night_____very cold, too cold for us to live.

A foreign language like English is difficult to learn, so you ____________ work too hard.

--------May I take this book out of the reading room?
------No,you_________. You read it in here.

. -- What does the sign on the wall read?
--“ No person ______ enter it without permission.”

She _______ have left school, for her bike is still there.

. --- The company spent thousands of dollars to promote its new product.
--- They _____: the world itself was more than ready to buy.

A．shouldn’t have bothered	B．needn't have bothered
C．couldn’t have bothered	D．mustn’t have bothered

——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
——____ Tom have a try?

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