科目: 来源:不详 题型:单选题
A.had attended ... three days before | B.attended ... three days ago |
C.would attend ... since three days | D.was attending ... for three days |
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科目: 来源:不详 题型:单选题
A.serves | B.serving | C.to serve | D.is served |
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科目: 来源:不详 题型:单选题
A.having sold | B.to be sold | C.selling | D.sells |
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科目: 来源:不详 题型:单选题
A.had been studying | B.have been studying |
C.have studied | D.are studying |
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科目: 来源:不详 题型:单选题
A.proved to | B.proved us | C.was proved | D.proved |
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科目: 来源:不详 题型:单选题
A.have damaged | B.are damaging | C.damaged | D.will damage |
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科目: 来源:不详 题型:单选题
A.is building | B.is built | C.is being built | D.will build |
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科目: 来源:不详 题型:单选题
A.is | B.are | C.have been | D.had been |
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科目: 来源:不详 题型:单选题
A.was going up | B.went up | C.has gone up | D.has been going up |
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科目: 来源:不详 题型:单选题
A.has driven | B.drove | C.had driven | D.was driving |
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