Question

______ him to do like this, he wouldn’t have made such a serious mistake in his
writing.

A．Did you persuade	B．Had you persuaded
C．If you should persuade	D．If you persuade

Answer 1

B

考查虚拟语气及倒装。此题表示的是与过去事实相反的虚拟语气，结构为if +主语+had done,主语+would/could/might have done 结构，省略if，had 前提，故选B。句意：如果你说服了他这样做的话，他就不会犯如此严重的错误了。