科目: 来源: 题型:选择题
A. | what | B. | that | C. | when | D. | why |
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A. | must | B. | might | C. | should | D. | would |
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A. | Clean | B. | To clean | C. | Cleaned | D. | Having cleaned |
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A. | Water | B. | To water | C. | Watered | D. | Watering |
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A. | to keep | B. | to have kept | C. | keeping | D. | having kept |
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A. | are visiting | B. | have visited | C. | visited | D. | had visited |
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A. | to sign | B. | signed | C. | sign | D. | signing |
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A. | floats | B. | floated | C. | was floated | D. | is floated |
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科目: 来源: 题型:选择题
A. | have thought | B. | had thought | C. | think | D. | thought |
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科目: 来源: 题型:选择题
A. | had opened | B. | will have opened | ||
C. | would open | D. | have opened |
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