Question

--- I can’t find Xiao Ping. Where did you see him this morning?
--- In the reading room _________ he often studies in.

A．that

B．where

C．in which

D．the one

Answer 1

A

考查定语从句，先行词是the reading room，定语从句中in缺少宾语用关系代词that，句意是：--我找不到小平，今天早上你在什么地方看见他的？--在他经常看书的图书馆。选A。