科目: 来源:不详 题型:单选题
A.carry out | B.carrying out | C.to carry out | D.carried out |
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科目: 来源:不详 题型:单选题
A.studying | B.studied | C.to study | D.being studied |
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科目: 来源:不详 题型:单选题
A.to write | B.to be written | C.written | D.writing |
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科目: 来源:不详 题型:单选题
A.to be sent | B.being sent | C.having been sent | D.to have been sent |
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科目: 来源:不详 题型:单选题
A.being accomplished | B.to be accomplished |
C.accomplished | D.having been accomplished |
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科目: 来源:不详 题型:单选题
A.spending | B.spend | C.to spend | D.to be spending |
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科目: 来源:不详 题型:单选题
A.mark | B.be marked | C.being marked | D.marking |
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科目: 来源:不详 题型:单选题
A.concentrating | B.concentrated | C.to concentrate | D.concentrates |
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科目: 来源:不详 题型:单选题
A.asking to | B.to ask to | C.asked to | D.ask to |
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科目: 来源:不详 题型:单选题
A.marking | B.marked | C.having marked | D.being marked |
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