— The woman biologist stayed in Africa studying wild animals for 13 years before
题型：同步题难度：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 |
答案
| D |
举一反三
| He paid for a seat, when he _____ have entered free. |
[ ] |
A. could
B. would
C. must
D. need |
| 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 |
— Where is my dictionary? I remember I put it here yesterday.
— You _____ it in the wrong place. |
[ ] |
A. must put
B. should have put
C. might put
D. might have put |
| We _____ have proved great adventurers, but we have done the greatest march ever made in the past ten years. |
|
A. needn"t
B. may not
C. shouldn"t
D. mustn"t |
| The weather turned out to be fine yesterday. I _____ the trouble to carry my umbrella with me. |
[ ] |
A. should have taken
B. could have taken
C. needn"t have taken
D. mustn"t have taken |
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