Who & 疑問句 & 關係代名詞

Who本身是【疑問詞】或【關係代名詞】， 如果是

「疑問詞」， 可以放在句首， 後面接動詞， 如

Who opened the door?

Who mailed the package?

Who broke the window?

Who當「關係代名詞」時， 前面接名詞， 這個名詞也稱為「先行詞」，

Who引導形容詞子句( 關係子句 )， 補充說明先行詞的訊息。 如

Sunnyah talked to a girl Who she mets yestetday.

Sunnyah is diligent person who always gets to work on time.

Sunnyah need a friend who can help she when she is in trouble.

(子句一定有動詞)