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专升本
—"Have you seen Mary today?" —"No, I think she______ away on her vacation. "
—"Have you seen Mary today?" —"No, I think she______ away on her vacation. "
admin
2010-12-30
33
问题
—"Have you seen Mary today?" —"No, I think she______ away on her vacation. "
选项
A、must be
B、may have been
C、must have been
D、might have been
答案
C
解析
表明对过去事情的猜测,表示一定,语气要比may和might强烈。must be是表示对现在或将来的推测。
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本试题收录于:
英语题库普高专升本分类
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英语
普高专升本
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