题目内容
18．-Hurry up，Mum．The lights are turned on．Dad has been back．-It _________ be him．He has gone to Shanghai．（ ）
| A． | must | B． | can't | C． | mustn't | D． | may |
分析 --快点，妈妈．灯已经亮了．爸爸回来了．
--不可能是他．他已经去了上海．
解答 答案：B．must必须，一定；can't不可能；mustn't禁止；may可以．根据He has gone to Shanghai，可知他已经去了上海，所以不可能是他．can't不可能．故选B．
点评 情态动词的考查是初中英语考查的重点，平时学习中一定要熟记这些词的基本词义及用法上的不同，注意其用法及在句子中表达语气的不同．考试中结合语境选择合适答案．
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