科目: 來源:不詳 題型:單選題
A.visited | B.have visited | C.had visited | D.a(chǎn)re visiting |
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科目: 來源:不詳 題型:單選題
A.have waited | B.was waiting | C.have been waiting | D.waited |
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科目: 來源:不詳 題型:單選題
A.is | B.a(chǎn)re | C.was | D.Were |
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科目: 來源:不詳 題型:單選題
A.had been working; had had | B.have been working; had |
C.have been working; have | D.a(chǎn)m working; will have |
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科目: 來源:不詳 題型:單選題
A.is taking | B.takes | C.will be taken | D.will take |
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科目: 來源:不詳 題型:單選題
A.was | B.came | C.have been | D.had been |
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科目: 來源:不詳 題型:單選題
A.did you stay | B.have you stayed | C.a(chǎn)re you staying | D.do you stay |
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科目: 來源:不詳 題型:單選題
When I first met Mary I didn’t like her, but I ________ my mind.A.have changed | B.change | C.had changed | D.would change |
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科目: 來源:不詳 題型:單選題
We are confident that the environment ________ by our further efforts to reduce pollution.A.improves | B.will be improved | C.has improved | D.was improved |
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科目: 來源:不詳 題型:單選題
A.was planning | B.a(chǎn)m planning |
C.have been planning | D.have planned |
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