单项选择题
I () with all the windows closed, but now I'd like some flesh air.
A. am used to sleep B. am used to sleeping C. used to sleeping D. used to sleep
单项选择题 How I wish that I () law when I was at college !
单项选择题 Although () happened in that developed country sounds like science fiction, it could occur elsewhere in the world.
单项选择题 It was not until the accident happened ().
