I really don’t know how to thank you , but for your help, I ______ my lost neckl
题型：不详难度：来源：
I really don’t know how to thank you , but for your help, I ______ my lost necklace．| A．couldn’t have found | B．mustn’t have found | | C．couldn’t find | D．wouldn’t find |
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答案
| A |
解析
| 考查虚拟语气。根据句中but for要不是，用虚拟语气，本题是对过去事实相反的虚拟语气，故用could have done，选A。 |
举一反三
| No person __________ carry a mobile phone into the examination room during thenational college Entrance Examinations． |
---Mr. Smith, ______ he have all these letters typed for you right away?
---He ______. They should be ready by 10 o’clock this morning.| A．will; must | B．shall; has to | C．need; will | D．would; ought to |
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Among the 15-year-old children, some studying in university while others are still learning to read and write.| A．should have been | B．would have been | C．can be | D．must be |
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— We expected you yesterday.
— I’m sorry, I you to say that I couldn’t be here until today.| A．must have called | B．would be calling | | C．could have been calling | D．should have called |
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After a heated discussion, we suggested the customer _______ the product back for repairs.| A．to send | B．send | C．sends | D．sent |
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