题目内容
18.Miss Lin isn't in the office.She _________ be in the classroom.( )| A. | can | B. | must | C. | mustn't | D. | can't |
分析 林女士没有在办公室,她一定在教室.
解答 正确答案:B.根据题干可知林女士不在办公室,则她一定在教室,表示对现在情况的肯定推测,则应用must+动词原形,故选择B.表示对现在情况的否定推测,则应用can't+动词原形.
点评 本题考查情态动词表推测的用法,掌握其基本用法,再根据题干作出选择.
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