A.were introduced | B.are been introduced | C.are introduced | D.had been introduced |
科目:高中英语 来源:不详 题型:单选题
A.has happened | B.happened | C.had happened | D.has been happening |
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科目:高中英语 来源:不详 题型:单选题
A.was warned | B.has been warned | C.has been warning | D.had warned |
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科目:高中英语 来源:不详 题型:单选题
A.were taking; wouldn't be | B.took; wouldn't have been |
C.had taken; wouldn't be | D.had taken; wouldn't have been |
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科目:高中英语 来源:不详 题型:单选题
A.one | B.another | C.some | D.any |
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科目:高中英语 来源:不详 题型:单选题
A.will be repaired | B.is repaired | C.is being repaired | D.has been repaired |
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科目:高中英语 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:高中英语 来源:不详 题型:单选题
A.have been coughing | B.had coughed | C.coughed | D.cough |
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科目:高中英语 来源:不详 题型:单选题
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