I've become good friends with several of the students in my school ______ I met in the Englishspeech contest last year.答案是who,但是who也可以作宾语吗?

问题描述:

I've become good friends with several of the students in my school ______ I met in the English
speech contest last year.答案是who,但是who也可以作宾语吗?