问题
选择题
That is a good way to keep ______ teachers and students happy. [ ]
A. either
B. none
C. all
D. both
答案
答案：D
搜题请搜索小程序“爱下问搜题”
That is a good way to keep ______ teachers and students happy. [ ]
A. either
B. none
C. all
D. both
答案：D