题目内容
14.-Is Mr.Smith in his office now?-No,he _______ there.I _______him in the library a minute ago.( )
| A. | may be,saw | B. | can't be,see | C. | mustn't be,see | D. | can't be,saw |
分析 -史密斯先生现在在他的办公室吗?
-不,他不可能在那儿,我一分钟前看见他在图书馆里.
解答 答案:D;may be,也许,可能;can't be不可能是;mustn't be绝对不行,完全不允许;根据句中信息in the library可知"他不可能在那儿";根据时间短语a minute ago可知该句用一般过去式;故选D.
点评 掌握情态动词的正确运用是解答该题的关键;还要根据句中的时间短语判断出句子的时态,从而正确作答.
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