题目

一个英语单选题,我认为选B,可答案给的是A.请教高手到底选什么呢?
If you had told us earlier _____ he was, we could have introduced him at the meeting.
A. who B. whom

提问时间：2020-11-15

答案

答案A.
你想：你是谁?用英语怎么说.who are you
who 引导宾语从句.whom不可以 做表语的.
.宾语从句中引导词的用法在复合句中作主句的宾语,引导词有：
连词：that (that 常可省略),whether,if
代词：who,whose,what ,which
副词：when ,where,how,why 等.