科目: 来源: 题型:选择题
| A. | what to use | B. | how to use | C. | when to use | D. | where to use |
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科目: 来源: 题型:选择题
| A. | were used; get used | B. | got used; are used | ||
| C. | used; get used | D. | used; used |
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科目: 来源: 题型:选择题
| A. | can't; has gone | B. | may not; has been | ||
| C. | mustn't; has gone | D. | can't; has been |
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科目: 来源: 题型:选择题
| A. | on; on | B. | on; of | C. | in; of | D. | in; in |
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科目: 来源: 题型:句型转换
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科目: 来源: 题型:填空题
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