Being physically examined for free twice a year is what every clerk _____ be ens
题型：同步题难度：来源：
Being physically examined for free twice a year is what every clerk _____ be ensured in any company of the
state. |
| [ ] |
A. must
B. shall
C. ought to
D. need |
答案
| B |
举一反三
— Do you know where David is? I couldn"t find him anywhere.
— Well. He _____ have gone far-his coat is still here. |
| [ ] |
A. shouldn"t
B. mustn"t
C. can"t
D. wouldn"t |
— Tom is never late for work. Why is he absent today?
— Something _____ to him. |
| [ ] |
A. must happen
B. should have happened
C. could have happened
D. must have happened |
— 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 |
| 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 |
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