Some of you may have finished unit one. __________ you can go on to unit two.
| A．If you may | B．If you do | C．If not | D．If so |
---When did he meet his wife for the first time？
---It was _________ he came back from Africa that year _________ he met his wife.
| A．when; then | B．not until; that | C．not; until | D．only; when |
The winner of the Grand Slams said that he had owed his success to many people, his parents_________.
| A．after all | B．by chance |
| C．on purpose | D．in particular |
Do let your mother know all the truth; she appears _________ everything.
| A．to tell | B．to be told |
| C．to be telling | D．to have been told |
Our monitor was absent. Otherwise I _________ the chair.
| A．would not take | B．didn't take |
| C．hadn't taken | D．wouldn't have taken |
He gave up smoking to_________ the money for his son’s education.
| A．set out | B．set aside | C．set up | D．set down |