our teachers are very busy they have not had a day___ for a week

问题描述:

our teachers are very busy they have not had a day___ for a week
our teachers are very busy they have not had a day ____ for a week
A,away B,on C,off D,of

选择C
have a day off的意思是:休息
我们的老师很忙,他们一周都没有一天休息.