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专升本
— I saw Mary in the library yesterday. — You_____her, she is still in hospital.
— I saw Mary in the library yesterday. — You_____her, she is still in hospital.
admin
2012-05-11
73
问题
— I saw Mary in the library yesterday. — You_____her, she is still in hospital.
选项
A、mustn’t have seen
B、could not see
C、can’t have seen
D、must not see
答案
C
解析
情态动词must作为推测时，不能用于否定式，它的否定式是can’t，故排除选项A、D。虽然问句用了过去式，但回答时强调的是结果，故选择完成式。
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本试题收录于：
英语题库成考专升本分类
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