科目: 来源:不详 题型:单选题
A.has served | B.had served | C.served | D.serves |
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科目: 来源:不详 题型:单选题
A.changed | B.is changing | C.had changed | D.has changed |
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科目: 来源:不详 题型:单选题
A.do; leave | B.did; leave | C.are; leaving | D.have; left |
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科目: 来源:不详 题型:单选题
A.had finished; started | B.have finished; to start |
C.have finished; have started | D.had finished; was starting |
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科目: 来源:不详 题型:单选题
A.see | B.had seen | C.saw | D.have seen |
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科目: 来源:不详 题型:单选题
A.suffered | B.has suffered | C.was suffering | D.has been suffered |
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科目: 来源:不详 题型:单选题
A.using; studying | B.use; to study | C.to use; to study | D.use; studying |
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科目: 来源:不详 题型:单选题
A. is | B.was | C.has | D.have |
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科目: 来源:不详 题型:单选题
A.hasn’t been decided | B.haven’t decided |
C.isn’t being decided | D.aren’t decided |
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科目: 来源:不详 题型:单选题
A.is | B.were | C.was | D.are |
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