--- Have you finished the book?
--- No, I’ve read up to the children discover the secret cave.
A. in which
B. what
C. that
D. where
网友回答
A. in which
B. what
C. that
(答案→)D. where
解析：考查状语从句。句中where引导地点状语从句，表示“……地方”。句意：——你读完书了吗？——没有，我刚读到孩子们发现秘密岩洞的那个地方。