The police still haven"t found the lost child, but they"re doing all they ___
题型：同步题难度：来源：
| The police still haven"t found the lost child, but they"re doing all they ____. |
| [ ] |
A. can
B. may
C. must
D. should |
答案
| A |
举一反三
| The traffic is heavy these days. I ____ arrive a bit late, so could you save me a place? |
| [ ] |
A. can
B. must
C. need
D. might |
— ____ I take the book out?
— I"m afraid not. |
| [ ] |
A. Will
B. May
C. Must
D. Need |
— I don" t really like James. Why did you invite him?
— Don"t worry. He _____ come. He said he wasn" t certain what his plans were. |
| [ ] |
A. must not
B. need not
C. would not
D. might not |
| John promised his doctor he _____ not smoke, and he has never smoked ever since. |
| [ ] |
A. might
B. should
C. could
D. would |
— I haven"t got the reference book yet, but I"ll have a test on the subject next month.
— Don"t worry. You ____ have it by Friday. |
| [ ] |
A. could
B. shall
C. must
D. may |
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