科目: 来源: 题型:选择题
| A. | wasn't | B. | am not | C. | haven't been | D. | won't be |
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| A. | Now that | B. | The first time | C. | Every time | D. | If only |
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| A. | A number of; The number of | B. | The number of; The number of | ||
| C. | A number of; A number of | D. | The number of; A number of |
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| A. | will replace | B. | have replaced | ||
| C. | are replaced | D. | are being replaced |
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| A. | is preparing | B. | has been preparing | ||
| C. | had been preparing | D. | was preparing |
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| A. | as big as twice | B. | twice as big as | ||
| C. | as bigger as twice | D. | twice as bigger as |
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| A. | have washed | B. | has washed | ||
| C. | is being washed | D. | are being washed |
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科目: 来源: 题型:选择题
| A. | told | B. | have told | C. | have been told | D. | are being told |
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科目: 来源: 题型:选择题
| A. | since | B. | when | C. | before | D. | after |
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科目: 来源: 题型:选择题
| A. | a good many | B. | a great deal | C. | a number of | D. | a lot of |
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