Thanks to the Internet, different kinds of information ________ in a short time.
| A．can be learned | B．has been learned | C．can learn | D．has learned |
- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.
| A．if | B．unless | C．until | D．when |
______ he talked with her for a long time, he failed to convince(说服)her.
| A．Though | B．But | C．Since | D．As |
Mr Smith usually reads a newspaperhe’s waiting for the bus.
| A．if | B．the | C．because | D．while |
Many teenagers think they ____ to play computer games on weekends.
| A．were allowed | B．should be allowed |
| C．are allowed | D．will be allowed |
The meeting is important that you mustn’t miss it. (盐城)
| A．very | B．such | C．so | D．too |