Question

_____________half an hour earlier, you would have met the famous writer.

A．If you came

B．Would you come

C．Had you come

D．Should you have come

Answer 1

C

试题分词：考查虚拟语气中的省略。根据主句中的would have met说明这是一个与过去事实兴奋地虚拟语气，本句中使用过去完成时if you had come half an hour earlier.省略了if要使用部分倒装的形式。故C正确。
点评：如果把表示虚拟的if条件句中的if省略，则把助动词提前使用倒装句。