题目内容
16.---Who is making much noise?---It ____ be Timmy.He is sleeping now.( )
| A. | can't | B. | may not | C. | mustn't | D. | couldn't |
分析 --谁发出那么多的噪音呢?--不可能是蒂米,他正在睡觉.
解答 答案:A.考查情态动词.句意"--谁发出那么多的噪音呢?--不可能是蒂米,他正在睡觉."mustn't 千万别,一定不要,表示禁止;couldn't表示过去不能;may not表示可能不;can't不可能,根据后文He is sleeping now.他正在睡觉可知不可能是汤姆.可知表示否定的把握大,即不可能是蒂米.故选A.
点评 理解各个选项的含义及其用法的不同,分析句子的上下句内容,根据具体内容作答.
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