可以引導定語從句。who引導定語從句作句子的主語、賓語。定語從句由關係代詞who、whom、whose、which、what、as和關係副詞where、when、why等引導。who引導的定語從句的先行詞是表示人的名詞或代詞。 擴展資料
疑問代詞who的用法
在句中作主語:
Who's there?
who作主語通常視爲單數,謂語動詞要用單數。
改錯題: Who are not at school today?改爲is
其他主語例句: Who came when I was out?
Who put the light out before I finished my work?