科目: 来源:不详 题型:单选题
| A.should fall behind | B.fell behind? |
| C.may fall behind | D.would fall behind |
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科目: 来源:不详 题型:单选题
| A.can’t | B.mustn’t | C.don’t have to | D.ought not to |
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科目: 来源:不详 题型:单选题
| A.must have got through? |
| B.could get through? |
| C.ought to get through? |
| D.would have got through? |
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科目: 来源:不详 题型:单选题
| A.can’t | B.must | C.shouldn’t | D.might |
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科目: 来源:不详 题型:单选题
| A.got | B.was getting | C.could get | D.must get? |
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科目: 来源:不详 题型:单选题
| A.mustn’t see | B.can’t have seen ? |
| C.mustn’t have seen | D.couldn’t see? |
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科目: 来源:不详 题型:单选题
| A.couldn’t have |
| B.mustn’t have? |
| C.needn’t have |
| D.oughtn’t to have |
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科目: 来源:不详 题型:单选题
| A.had to be taken | B.should have taken? |
| C.must have been taken | D.ought to have been taken? |
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科目: 来源:不详 题型:单选题
| A.could have had | B.should have had? |
| C.might have had | D.must have had? |
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科目: 来源:不详 题型:单选题
| A.might have done | B.must have done? |
| C.must be doing | D.must do? |
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