–I didn’t invite him to the party but he came anyway and got completely drunk.he hadn’t

问题补充：

–I didn’t invite him to the party but he came anyway and got completely drunk.

--he hadn’t come! The party could have been a success.

A. How come

B. Only if

C. What if

D. If only

答案：

A. How come

B. Only if

C. What if

(答案→)D. If only

解析：考查短语辨析。“我没有邀请他来晚会，他却来了，还喝醉了。”“要是他没来就好了！那次的晚会就很成功了。”A“怎么会......”；B“只有”；C“要是......将会怎样”；D“要是......就好了”，后跟虚拟语气。故选D。