题目内容
---Bob, it’s getting cold outside. ______ take a jacket
---All right, Mum.
- A.Why do you
- B.Why not
- C.Why did you
- D.Why don’t
B
why not 意思是"为什么不呢’’ 一般用在疑问句中,表示提建议.
why not 后面要跟动词原型. why not ＝why don’t you二者用法是完全一致的，可以相互转化． Why do yo你为什么Why did you 为Why do you 的过去时态用法.
从上下文可知,妈妈是在向bob提出建议,所以选B.
why not 意思是"为什么不呢’’ 一般用在疑问句中,表示提建议.
why not 后面要跟动词原型. why not ＝why don’t you二者用法是完全一致的，可以相互转化． Why do yo你为什么Why did you 为Why do you 的过去时态用法.
从上下文可知,妈妈是在向bob提出建议,所以选B.
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