Question

I did not see your sister at the meeting. If she       , she would have met my brother

A. has come    B. did come

C. come    D. had come

Answer

D

【解析】

考查虚拟语气。句意：我没有在会上见到你妹妹。如果她来了，她会遇见我哥哥的。if 引导的虚拟条件句，与过去事实相反的假设。主句谓语动词形式would/could/might/should have done，条件从句的谓语动词形式had done。故D选项正确。

条件从句的谓语动词形式

主句谓语动词形式

与过去事实相反的假设

had done

would/could/might/should have done

与现在事实相反的假设

过去时(was→were)

would/could/might/should do

与将来事实相反的假设

过去时 (was→were ) ;

should do;

were to do

would/could/might/should do