You'd ---keep the door open.

问题描述：

You'd ___keep the door open.
选择:A.better not to B.better not C.not better D.better to not
但为什么?请说出理由和知识点!
1个回答 分类：综合 2014-12-02

问题解答：

我来补答
had better do sth
had better not do sth
固定用法
had better +V 原形
 
 
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