是同義句,中文意思是,這是誰的書
Whose is that farm over yonder?那邊的農場是誰的
=Whose farm is that over yonder
Whose side are you on anyway?
你到底贊成誰的觀點呢
So whose party was it last night?
那麼昨天晚上是誰的晚會
I can't remember whose idea it was.
我記不得這是誰的主意了。