| A.don’t concentrate | B.hadn’t concentrated |
| C.haven’t been concentrating | D.wasn’t concentrating |
科目:高中英语 来源:不详 题型:单选题
| A.was he able to make himself heard | B.he was able to make himself heard |
| C.was he able to make himself hear | D.he was able to make himself hear |
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科目:高中英语 来源:不详 题型:单选题
| A.piled snow | B.had been closed | C.were blocked | D.covered with snow |
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科目:高中英语 来源:不详 题型:单选题
| A.is fixing on | B.has fixed on | C.is being fixed on | D.had been fixed on |
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科目:高中英语 来源:不详 题型:单选题
| A.worked | B.was working | C.would work | D.would have worked |
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科目:高中英语 来源:不详 题型:单选题
| A.will be | B.is being | C.had been | D.would be |
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科目:高中英语 来源:不详 题型:单选题
| A.was thinking | B.think | C.had thought | D.will think |
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科目:高中英语 来源:不详 题型:单选题
| A.was playing | B.had been playing | C.have played | D.Played |
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科目:高中英语 来源:不详 题型:单选题
| A.there were | B.has there been | C.there has been | D.were there |
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