2012-08-28 09:28 自考365
单选题
1、【2007.10】We request that all cell phones ______ for the duration of the performance.
A.be turned off
B.should turn off
C.ought to be turned off
D.to be turned off
正确答案: A
答案解析: 本题考查虚拟语气及被动用法——(should)be done.
自考365
2022-01-16
自考365
2022-01-16
自考365
2022-01-16