A.has discovered | B.have discovered |
C.has been discovered | D.have been discovered |
科目:高中英语 来源:不详 题型:单选题
A.doesn’t permit | B.is not permitted |
C.will not be permitted | D.was not permitted |
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科目:高中英语 来源:不详 题型:单选题
A.attend | B.am attending | C.will attend | D.will be attending |
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科目:高中英语 来源:不详 题型:单选题
A. were | B. was | C. have been | D. has been |
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科目:高中英语 来源:不详 题型:单选题
A.has been needed;produces | B.have been needed;produce |
C.is needed;produce | D.are needed;produces |
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科目:高中英语 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:高中英语 来源:不详 题型:单选题
A.have put | B.have been put | C.had put | D.had been put |
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科目:高中英语 来源:不详 题型:单选题
A.is serving | B.serves | C.is being served | D.served |
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科目:高中英语 来源:不详 题型:单选题
A.was doing | B.am doing |
C.have done | D.had been doing |
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