Students in the football class usually play ________ football when school is over.
| A．the | B．/ | C．a | D．an |
I wonder if he tonight. If he, I’ll let you know.
| A．will come; will come | B．comes; comes |
| C．will come; comes | D．comes; will come |
- 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 |