作地点状语或表语时,用where:
His book is on the desk.----Where is his book?
作定语时用which:
The book on the desk is his.-----Which book is his?
作地点状语或表语时,用where:
His book is on the desk.----Where is his book?
作定语时用which:
The book on the desk is his.-----Which book is his?