科目: 来源:不详 题型:单选题
A.is, sells | B.should be, should sell | C.is, should sell | D.should be, sells |
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科目: 来源:不详 题型:单选题
A.should receive | B.could have received |
C.would receive | D.must have received |
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科目: 来源:不详 题型:单选题
A.should | B.must | C.need | D.can |
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科目: 来源:不详 题型:单选题
A.could help | B.may help |
C.must have helped | D.might have helped |
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科目: 来源:不详 题型:单选题
A.can not finish | B.will not finish |
C.had not finished | D.could not have finished |
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科目: 来源:不详 题型:单选题
A.all the class studied more carefully the problem |
B.the problem was more carefully studied |
C.with great care the problem could be studied |
D.all the class study the problem more carefully |
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科目: 来源:不详 题型:单选题
A.must put | B.should have put | C.might put | D.must have put |
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科目: 来源:不详 题型:单选题
A.has been waiting | B.waits | C.wait | D.will wait |
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科目: 来源:不详 题型:单选题
A.wouldn’t have arrived | B.hadn’t arrived |
C.didn’t arrive | D.shouldn’t arrive |
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科目: 来源:不详 题型:单选题
A.mustn’t have | B.can’t have |
C.should have | D.needn’t have |
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