科目: 来源:不详 题型:单选题
| A.must | B.can |
| C.have to | D.ought to |
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科目: 来源:不详 题型:单选题
| A.should have bought |
| B.could have bought |
| C.needn’t have bought |
| D.mustn’t have bought |
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科目: 来源:不详 题型:单选题
| A.will | B.can |
| C.may | D.should |
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科目: 来源:不详 题型:单选题
| A.mustn’t | B.won’t |
| C.mightn’t | D.shouldn’t |
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科目: 来源:不详 题型:单选题
| A.should | B.must |
| C.shall | D.can |
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科目: 来源:不详 题型:单选题
| A.mightn’t | B.won’t |
| C.needn’t | D.mustn’t |
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科目: 来源:不详 题型:单选题
| A.must have asked |
| B.could have asked |
| C.would have asked |
| D.may have asked |
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科目: 来源:不详 题型:单选题
| A.need have been | B.would have been |
| C.must have been | D.should have been |
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科目: 来源:不详 题型:单选题
| A.may | B.must |
| C.can | D.shall |
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科目: 来源:不详 题型:单选题
| A.must | B.dare |
| C.may | D.shall |
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