问题
选择题
Last week, I bought an interesting story book, _________ is very beautiful.
A．which cover
B．the cover of which
C．its cover
D．the cover of whose
答案
答案：B
考查定语从句。句中先行词为story book ，the cover of which =" whose" cover。句意：上个周，我买了一本有趣的故事书，它的封面非常漂亮。