1 . During our trip to the Great Wall last week, I couldn’t stop thinking about how huge a project it ________ have been to build it in ancient times.
A.must | B.could | C.should | D.need |
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2024-04-01更新
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2卷引用:天津市第四十七中学2023-2024学年高二下学期3月月考英语试题
2 . This ___________an improvement, but “breakthrough” was an overstatement.
A.can have been | B.should have been |
C.may have been | D.need have been |
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