,固定用法,所以选A,翻译见一楼所示 why not do sth.为什么不做某事 practise doing sth.练习做某事 .
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Why don't you/not do sth. 为什么不做某事 eg:Why don't you get her a scarf? 你为什么不给她买一条围巾呢?
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... Remember not to do something 记得不去做某事 Why not do something 为什么不做某事 Not hesitate to do something 毫不犹豫做某事 ...
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