单流程不允许返回到初始状态()
A. 对
B. 错
I have lived here ________at least twenty years.
A. for
B. since
I _____ to take a good holiday this year, but I wasn't able to get away.
A. hope
B. have hoped
C. had hoped
D. hoped
I hope you______ the instructions ready before I come tomorrow.
A. to get
B. shall get
C. will get
D. will have gotten