The long-lasting war, filled with blood and deaths, ended in people’s sadness, ______ no result.
| A．having produced | B．to produce | C．producing | D．produced |
——May I smoke here?
——If you , choose a seat in the smoking section.
| A．should | B．could | C．must | D．may |
Thank you for helping me. I the final exam without your timely help.
| A．have failed | B．will fail | C．would have failed | D．must have failed |
——Has Tom finished his report so far?
——I have no idea. He it this morning.
| A．did | B．has done | C．was doing | D．had done |
He is a little bit mysterious these days. Nobody in our company knows exactly.
| A．what he is working on | B．what is he working on |
| C．what did he work on | D．what was he working on |
——I don’t feel like going out. Why don’t we just stay home and watch TV instead?
——You promised to take me out for dinner and to the theatre on my birthday.
| A．Great! | B．Why me? | C．Come on! | D．Not at all. |