问题
选择题
______ is known to all is that good friends ______ happiness and value to life．
A．What；add to
B．It；add
C．What；add
D．It；add to
答案
答案：C
搜题请搜索小程序“爱下问搜题”
______ is known to all is that good friends ______ happiness and value to life．
A．What；add to
B．It；add
C．What；add
D．It；add to
答案：C