Excuse me. Where is your teachers’ office—________, sir.

Last month a new kind of electriccar was produced in Zhengzhou. Its highest _________ can reach 120 kilometresan hour.

What kind of person do you want to helpyou—______ always trying his best and nevergiving up in time of difficulty.

Someone called me up in the middle of the night, butthey hung up I could answerthe phone.

______ either she or I fit for the job?—I’m sorry to tell you that neither she nor you ______.[ ]