---Where is my reference book? It was here a moment ago.---Someone ___ it by mis
题型：不详难度：来源：
---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.| A．could have taken | B．must take | C．might take | D．must have taken |
|
答案
| D |
解析
| 在肯定句中对过去发生的事情的推测要用must have done。这里表示肯定有人错拿了。 |
举一反三
If you have something important to do, you ___ waste any time.| A．needn’t | B．mustn’t | C．may not | D．won’t |
|
You ___ me, but since you have,I’ll keep it secret from others.| A．needn’t have told | B．didn"t need to tell | C．wouldn"t have told | D．couldn"t have told |
|
If you want to borrow a football after school, your student card ___ here.| A．has to leave | B．must leave | C．has to be left | D．must be left |
|
As a graducate in computer science, he ___ to work out the problem.| A．wouldn"t have failed | B．can"t have failed | C．mustn’t have failed | D．might not have failed |
|
You did not go to the party yesterday, or I ___ you.| A．would see | B．could meet | C．might have seen | D．might see |
|
最新试题
热门考点