—Mum，it’s late．Why are you still here？
—Dad hasn’t come back yet．I________for him．
A．am waiting
B．was waiting
C．waited
They have fun________their homework all the time．
| A．do |
| B．to do |
| C．doing |
| D．to doing |
Thanks for helping me________out that problem．
| A．work |
| B．working |
| C．works |
| D．to working |
The news on TV reported that it would rain________．
| A．heavy |
| B．hardly |
| C．heavily |
| D．big |
—She didn’t play computer games．
—________．
| A．I didn’t，too |
| B．I didn’t，either |
| C．I didn’t，already |
| D．I didn’t，also |