题目内容
8．That man ________ be Mr．Wu，because he has gone to Shanghai．（ ）| A． | can't | B． | might | C． | could | D． | must |
分析 那个人不可能是吴老师，因为他去上海了．
解答 答案：A．can't 不可能；might，可能，可能性不是很大；could，能，会；must一定，必须．根据because he has gone to Shanghai可知，吴老师去上海了，所以那个人不可能是他，can't 不可能．故选A．
点评 此题考查情态动词的用法．解答本题的关键是理解句意以及所给选项的意思并作出正确选择．
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