题目内容
5.-Let's go dancing tonight!-Sorry,I ________.I have to go to my guitar lesson.( )
A. | mustn't | B. | needn't | C. | can't |
分析 --我们今天晚上去跳舞吧!
--对不起,我不能去.我得去上吉他课.
解答 答案:C.I have to go to my guitar lesson,可知我得去上吉他课,have to"不得不",前面是表达不能去跳舞.不能是can't.故选C.
点评 本题考查了情态动词的用法.解答时注意短语have to的用法:一般翻译成不得不,受客观因素的影响.
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