---What are you busy with ?
--- We are carrying out a research ____ the causes of cancer.
| A．into | B．onto | C．to | D．in |
Last Sunday a few of us arranged to meet in town, but Jenny didn’t.
| A．turn up | B．give up | C．make up | D．take up |
By the end of last year, another new gymnasiumin Beijing.
| A．would be completed | B．was being completed |
| C．has been completed | D．had been completed |
Though bought several years ago, the car is still in good .
| A．situation | B．condition | C．standard | D．position |
Tom is the firsthe is wrong.
| A．admit | B．to admit | C．of admitting | D．for admitting |
Every possible meansto prevent the air pollution, but the sky is not still clear.
| A．is used | B．are used | C．has been used | D．have been used |