Last week ,I bought an interesting story book,________________is _英语解答

Last week ,I bought an interesting story book,________________is very beautiful.
填it's cover.,the cover of which ,the cover of it 有什么区别

人气：459 ℃　时间：2019-10-14 01:45:59

解答

the cover of which = whose cover
这是一个非限制性定语从句.