科目: 来源:不详 题型:单选题
| A.is preparing | B.was preparing | C.had been preparing | D.has been preparing |
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科目: 来源:不详 题型:单选题
| A.was tested | B.will be tested | C.is being tested | D.has been tested |
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科目: 来源:不详 题型:单选题
| A.is preparing | B.was preparing |
| C.had been preparing | D.has been preparing |
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科目: 来源:不详 题型:单选题
| A.walks | B.walked | C.has walked | D.had walked |
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科目: 来源:不详 题型:单选题
| A.is expected | B.is expecting | C.expects | D.will be expected |
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科目: 来源:不详 题型:单选题
| A.don’t | B.aren’t | C.won’t | D.do |
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科目: 来源:不详 题型:单选题
| A.change | B.has changed |
| C.changing | D.having changed |
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科目: 来源:不详 题型:单选题
| A. trapped | B.has been trapped | C. trapping | D.had been trapped |
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科目: 来源:不详 题型:单选题
| A.will make | B.had made | C.was making | D.makes |
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科目: 来源:不详 题型:单选题
| A.was happening | B.happened | C.happens | D.has happened |
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