—I don't think we have met before，________？
—Yes，once at a party，but we weren't introduced.
| A．do I | B．have we | C．don't I | D．haven't you |
It really seemed ages ____ the police came on the scene and cleared away the damaged cars．
| A．before | B．after | C．when | D．as |
—I'm sorry, but there's no smoking room in this section on the train．
—Oh, I ____that, and I won't smoke again．
| A．don't know | B．won't know | C．didn't know | D．haven't known |
____ new round of competition for customers has started with discounted products in Gome and Suning, setting off____ wave of shopping rush at the end of the year．
| A．A;不填 | B．The; a | C．A; the | D．A; a |
—It has been a wonderful evening．Thank you very much．
— .
| A．I’m glad to hear that | B．My pleasure |
| C．No, thanks | D．Don’t say so |
--- I’m sorry．I ___________ at you the other day．
--- Forget it．I was a bit out of control myself．
| A．shouldn’t shout | B．shouldn’t have shouted |
| C．mustn’t shout | D．mustn’t have shouted |