30. —Why! I ____ get you on the phone.
— We ______ basketball on the playground when you phoned.
| A．didn’t; must have been playing | B．didn’t; must be playing |
| C．couldn’t; must have played | D．couldn’t; must be playing |
Only after my friend came______.
| A．did the computer repair |
| B．he repaired the computer |
| C．was the computer repaired |
| D．the computer was repaired |
Though difficult, I ________ him find a job, which made him very pleased.
| A．tried to help | B．managed to help |
| C．tried helping | D．succeeded to help |
We are faced with the problem _________ we should do with so much pollution.
| A．what | B．why | C．that | D．That |
The naughty boy spends most of his time playing computer games ______ his lessons.
| A．rather than study | B．other than studying |
| C．rather than studying | D．other than to study |
——Thank you for showing me the way!
——____________. I live nearby, so I am familiar with this area.
| A．It’s easy | B．My pleasure |
| C．With pleasure | D．Never mind |