— The woman biologist stayed in Africa studying wild animals for 13 years before
题型：不详难度：来源：
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !| A．may go through | B．might go through | | C．ought to have gone through | D．must have gone through |
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答案
| D |
解析
| 此句是对已经发生的事情的肯定的猜测，故排除A、B。根据句意，排除C。故答案为D。 |
举一反三
He paid for a seat, when he ______ have entered free. | A．could | B．would | C．must | D．need |
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This cake is very sweet. You _____ a lot of sugar in it. | A．should put | B．could have put | C．might put | D．must have put |
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— Do you know where David is ? I couldn’t find him anywhere.
— Well. He ______ have gone far –his coat’s still here. | A．shouldn’t | B．mustn’t | C．can’t | D．wouldn’t |
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If I ________ plan to do anything I wanted to. I’d like to go to Tibet and travel through as much of it as possible. | A．would | B．could | C．had to | D．ought to |
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— Shall I give you a ride as you live so far away ?
— Thank you. _______.| A．It couldn’t be better | B．Of course you can | | C．If you like | D．It’s up to you |
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