It's a very difficult question , so ______of the students could answer it [ ]A. noneB. allC. ev
A. none B. all C. every D. some
题目简介
It's a very difficult question , so ______of the students could answer it [ ]A. noneB. allC. ev
题目详情
A. none
B. all
C. every
D. some
答案