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