— The woman biologist stayed in Africa studying wild animals for 13 years before

— 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 throughB.might go through
C.ought to have gone throughD.must have gone through

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.couldB.wouldC.mustD.need

题型:不详难度:| 查看答案
This cake is very sweet. You _____ a lot of sugar in it.
A.should putB.could have putC.might putD.must have put

题型:不详难度:| 查看答案
— Do you know where David is ? I couldn’t find him anywhere.
— Well. He ______ have gone far –his coat’s still here.
A.shouldn’tB.mustn’tC.can’tD.wouldn’t

题型:不详难度:| 查看答案
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.wouldB.couldC.had toD.ought to

题型:不详难度:| 查看答案
— Shall I give you a ride as you live so far away ?
— Thank you. _______.
A.It couldn’t be betterB.Of course you can
C.If you likeD.It’s up to you

题型:不详难度:| 查看答案
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