问题
选择题
I ________ with all the windows closed, but now I'd like some fresh air.[ ]
A. am used to sleep
B. am used to sleeping
C. used to sleeping
D. used to sleep
答案
答案:D
I ________ with all the windows closed, but now I'd like some fresh air.[ ]
A. am used to sleep
B. am used to sleeping
C. used to sleeping
D. used to sleep
答案:D