All possible means ____ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．has been used | C．are use | D．have been used |
I agree with most of what you said,but I don’t agree with___
| A．everything |
| B．anything |
| C．something |
| D．nothing |
I can’t make myself___because of my broken English
| A．understanding |
| B．understand |
| C．to be undersood |
| D．understood |
When we find a cook___,he will be dismissed
| A．smoke |
| B．smoking |
| C．smoked |
| D．to smoke |
The teacher called Tom to his office because he was caught___in the exam
| A．to cheat |
| B．cheating |
| C．cheated |
| D．cheat |
With a lot of difficult problems___,the manager felt like a cat on hot bricks
| A．settling |
| B．to settle |
| C．being settle |
| D．settled |