问题
You can spend your free time in our library There isa reading room more than600 students
A:of which the top; with it’s top
B:whose top; with its top
C:whose top; the top of it
D:the top of which; with it’s top
B:whose top; with its top
C:whose top; the top of it
D:the top of which; with it’s top
正确答案是：
