单数复数都可以
whose之后的名词不加the,而是直接加名词,中文意思是“谁的……” 
例如,这是谁的鞋子?
Whose shoes are these? 
又如:
Whose shirt is this? = Whose is this shirt? 它们是同义句。
whose 后面可以直接跟名词,“whose +名词”构成完整的名词短语,在句子里一起。
whose.还可以用来引导定语从句,whose后面跟的名词,如果是复数,定语从句的谓语动词就用复数,如实单数就用单数。
We live in a house whose windows are broken.
We live in a house whose door is destroyed.