问题
选择题
We should try a good way to keep ______ teachers______ students ______. [ ]
A. both; and; happily
B. either; or; happy
C. all; and; happily
D. both; and; happy
答案
答案:D
We should try a good way to keep ______ teachers______ students ______. [ ]
A. both; and; happily
B. either; or; happy
C. all; and; happily
D. both; and; happy
答案:D