---- I can’t get through to the general manager’s office anyhow. ---- The line i
题型：不详难度：来源：
---- I can’t get through to the general manager’s office anyhow.
---- The line is busy. Someone ___________ the telephone.| A．can have used | B．can use | | C．must have used | D．must be using |
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答案
| D |
解析
试题分析：考查情态动词推测的用法。A项中 can have used可能已经用了； B项中can use可以用；C项中must have used一定已经使用；D项中 must be using一定正在使用。句意：－我无论如何也无法打通总经理办公室的电话。-热线。一定有人在用电话。
点评：情态动词的用法，要掌握每个情态动词的基本用法，其它的结构都是由其基本用法变化而来。比如，A项中 can have used其实就是can“可能”加上完成时态have used“已经完成”构成。其它的类推。 |
举一反三
.—Would you mind if I opened the window?
— ____. In fact , I was going to suggest you _____it.| A．Yes; not did | B．Not at all; do | C．More or less; did | D．Of course; do |
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Listen! His family must be quarreling, _____?| A．mustn’t it. | B．isn’t it. | C．aren’t they. | D．needn’t they. |
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Most of the local people insist that the old temple _______ as it has a long history.
| A．should not pull down | B．must not pull down
| C．not be pulled down | D．would not be pulled down |
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Watch out for these animals! They could be terrified ______ a sudden loud noise．| A．being there | B．should there be | | C．there was | D．there have been |
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If he ___ me his telephone number yesterday, I ___ able to ring him up now.| A．told, would be | B．had told, would have been | | C．had told, would be | D．told, am |
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