科目: 来源: 题型:选择题
| A. | are changing | B. | should be changed | ||
| C. | should change | D. | changed |
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科目: 来源: 题型:选择题
| A. | says | B. | said | C. | was said | D. | is said |
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科目: 来源: 题型:选择题
| A. | have invited | B. | were invited | C. | were inviting | D. | invited |
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科目: 来源: 题型:选择题
| A. | have replaced | B. | are replacing | C. | are replaced | D. | be replaced |
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科目: 来源: 题型:选择题
| A. | finishes | B. | finished | C. | is finished |
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科目: 来源: 题型:选择题
| A. | uses | B. | used | C. | is used | D. | was used |
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科目: 来源: 题型:填空题
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科目: 来源: 题型:选择题
| A. | can't | B. | must | C. | may | D. | can |
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