--- I didn’t invite him to the party but he came anyway and got pletely drunk.
--- he hadn’t e! The party could have been a success.
A. How e
B. Only if
C. What if
D. If only
网友回答
A. How e
B. Only if
C. What if
(答案→)D. If only
解析：考查情景交际。句意：--我没有邀请他参加晚会，但是他还是来了，而且喝得烂醉。--他要是没来就好了！晚会就会很成功了。A怎么会；B只有；C要是......将会怎样；D要是......就会了。这里是虚拟语气，与过去事实相反。故选D。