The price ____ , but I doubt whether it will remain so．
| A．went down | B．will go down | C．has gone down | D．was going down |
A new _____ bus service to Tianjin Airport started to operate two months ago.
| A．normal |
| B．usual |
| C．regular |
| D．common |
But _____,if we ignore pollution, we will suffer a lot from it because there will be many environmental problems.
| A．on the one hand |
| B．on the other hand |
| C．in one hand |
| D．in the other hand |
When Edison was only a boy of thirteen, he earned a living, _____ newspapers in the street.
| A．to sell |
| B．sold |
| C．selling |
| D．having sold |
The ticket for the concert is in great need, so if you want one, please get in touch with us_____．
| A．in a hurry |
| B．in advance |
| C．in particular |
| D．in common |
The noise of something next door early every morning made me unable to fall into sleep.
| A．killed |
| B．killing |
| C．having killed |
| D．being killed |