问题 完形填空

—What's your feeling now?

—I am terribly sorry. If only I ________(come) here yesterday!

答案

had come 

考查if only的用法。if only“要是……就好了”;由时间状语yesterday来看,这是对过去所发生事情的虚拟,所以用过去完成时。

单项选择题
名词解释