英语翻译：这个钥匙扣是谁的?____ _______ is this?=___ ___this key ring?

英语翻译：这个钥匙扣是谁的?____ _______ is this?=___ ___this key ring?
英语翻译：这个钥匙扣是谁的?____ _______ is this?=___ ___this key ring?

英语翻译：这个钥匙扣是谁的?____ _______ is this?=___ ___this key ring?
应该是：
(Whose key ring) is this= (Whose is) this key ring