—What do you think we can do for our aged parents?—You __________ do anything e
题型：不详难度：来源：
—What do you think we can do for our aged parents?
—You __________ do anything except to be with them and be yourself.| A．don’t have to | B．oughtn’t to | | C．mustn’t | D．can’t |
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答案
| A。 |
解析
| don’t have to意为“不必”。句意是：你不必做什么，只需陪陪他们，真诚地对待他们。 |
举一反三
The teacher demands that she her test papers within ten minutes．
A．turn in B hands in C．have turned in D has handed in |
. The teacher __________ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose. | A．should | B．can | | C．would | D．must |
|
| . In crowded places like airports and railway stations, you __________ take care of your luggage. |
. My MP4 player isn’t in my bag. Where __________ I have put it? | A．can | B．must | | C．should | D．would |
|
. The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them. | A．shan’t | B．can’t | | C．needn’t | D．mustn’t |
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