单选题 By the way, that business friend of mine ______ seems to have changed his mind about coming in with you.

A、 with who you had lunch
B、 that you had lunch
C、 whom you had lunch
D、 you had lunch with

【正确答案】 D

【答案解析】此题考查引导定语从句的关系代词的省略。此句意为“顺便说一句，上次与你共进过午餐的那位我生意上的朋友好像已经改变了主意，不想与你一起来了”。You had lunch with是定语从句修饰business friend of mine，省略了关系代词whom， whom在从句中做宾语可以省去。