While cleaning the snow on the road, _________.
| A．a wallet was found on the ground. |
| B．a wallet appeared on the ground. |
| C．I found a wallet lying on the ground. |
| D．I found a wallet laid on the ground. |
When the woman found her borrowed valuable necklace (项链) ______, she felt______ the world was at an end.
| A．was missing; unless | B．was lost; as if | C．was missed; whether | D．was gone; as if |
______ he has made a decision, it is not easy for you to make him change his mind.
| A．Though | B．Unless | C．Until | D．Once |
I ______ walking in the garden ______ watching TV in the room.
| A．like; instead | B．would rather; than | C．prefer; than | D．prefer; to |
The old man was the only person on the spot（现场）, so the policeman asked him to _____ the facts as he remembered them.
| A．set up | B．dig out | C． set down | D．keep out |
Eric had received training in computer for one year _______ he found a job in a big company.
| A．before | B．after | C．since | D．as |