——This wall of air is an effective answer to the problem and it ____ work.——But
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——This wall of air is an effective answer to the problem and it ____ work.
——But it is a question to put such a wall of air around the statue.| A．may | B．must | C．should | D．could |
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答案
| C |
解析
| 本题主要考查情态动词的用法。选项A表示事实上的可能或允许；选项B表示要求或肯定的推测；选项C表示建议或根据一般情况的推测；选项D表示较小的可能性。根据句子中的关键词an effective answer可知，后面表示在一般情况下的推测。 |
举一反三
—You___________ stop me.
—Even if you __________it, I won"t allow you to swim across the river.| A．mustn’t; dare not do | B．may; dare not do | | C．can; dare to do | D．needn"t; dare do |
|
Why didn"t you tell me there was no meeting today? I all the way here through the heavy snow. | A．needn"t have driven | B．can"t have driven | | C．mustn"t have driven | D．shouldn"t have driven |
|
——Can I pay the bill by check?
——Sorry, sir. But it is the management rule of our hotel that payment ____ be made in cash. |
The dance performed by the disabled actors is really a hit, but years ago no one ____ they were to achieve such great success.| A．must have imagined | B．could have imagined | | C．should have imagined | D．would have imagined |
|
——Ms Lin looks rather a kind lady.
——But in fact she is cold and hard on us. You ____ believe it!| A．shouldn’t | B．wouldn’t | C．mustn’t | D．needn’t |
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