科目: 来源:不详 题型:单选题
| A.has been completed | B.was completed |
| C.have been completed | D.has completed |
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科目: 来源:不详 题型:单选题
| A.are; is | B.is; is | C.is; are | D.are; are |
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科目: 来源:不详 题型:单选题
| A.were using | B.have used |
| C.has been used | D.was used |
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科目: 来源:不详 题型:单选题
| A.was;has coached | B.were;have coached |
| C.was;have coached | D.were;has coached |
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科目: 来源:不详 题型:单选题
| A.is | B.are |
| C.were | D.was |
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科目: 来源:不详 题型:单选题
| A.an | B.a | C.the | D./ |
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科目: 来源:不详 题型:完形填空
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科目: 来源:不详 题型:完形填空
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科目: 来源:不详 题型:单选题
| A.is; is | B.are; are | C.are; is | D.is; are |
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科目: 来源:不详 题型:单选题
| A. are | B.was | C.is | D.were |
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