问题
选择题
While reading, you’d better make a mark ___ you have any questions.
A．on which
B．at which
C．the place where
D．where
答案
答案：D
搜题请搜索小程序“爱下问搜题”
While reading, you’d better make a mark ___ you have any questions.
A．on which
B．at which
C．the place where
D．where
答案：D