Please pass me the dictionary_______cover is black.为什么用whose他又不是人?

Please pass me the dictionary_______cover is black.为什么用whose他又不是人?
Please pass me the dictionary_______cover is black.
为什么用whose
他又不是人?

Please pass me the dictionary_______cover is black.为什么用whose他又不是人?
whose作定语从句的引导词时,只要前后是所属关系,不管人还是物都必须用,这里是the book's cover（书的封皮）,是所属关系,所以用whose

字典的COVER
有所属关系就用WHOSE，
书上也没说，WHOSE专用于人啊。