科目: 来源:不详 题型:单选题
A.might | B.could | C.can | D.should |
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科目: 来源:不详 题型:单选题
A.might have | B.might have had | C.may have | D.ought to have had |
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科目: 来源:不详 题型:单选题
A.could not pass | B.could not have passed |
C.did not pass | D.could not passed |
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科目: 来源:不详 题型:单选题
A.can’t have been | B.mustn’t have been |
C.must be | D.may be |
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科目: 来源:不详 题型:单选题
A.begin | B.begun | C.have begun | D.began |
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科目: 来源:不详 题型:单选题
A.shall | B.will | C.ought to | D.need |
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科目: 来源:不详 题型:单选题
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科目: 来源:不详 题型:单选题
A.am able; couldn’t | B.could; was able to |
C.was quite able to; couldn’t | D.couldn’t was able to |
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科目: 来源:不详 题型:单选题
A.can | B.will | C.must | D.should |
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科目: 来源:不详 题型:单选题
A.might | B.should | C.would | D.need |
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