问题
选择题
______ in the school regulation that students shouldn’t use cell phones in the campus．
A．What requires
B．What is required
C．It requires
D．It is required
答案
答案：D
搜题请搜索小程序“爱下问搜题”
______ in the school regulation that students shouldn’t use cell phones in the campus．
A．What requires
B．What is required
C．It requires
D．It is required
答案：D
