Few people paid full attention to their health conditions __________ they were seriously ill.
| A．when | B．if | C．until | D．after |
We thought of selling this old furniture, but we’ve decided to ______it. It might be valuable.
| A．look after | B．keep up with | C．turn to | D．hold on to |
._____________ he used to go skiing in winter but now swimming is his favorite.
| A．At a time | B．At one time | C．At no time | D．At times |
We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.
| A．/; a | B．the; / | C．the; a | D．a; a |
The following are some popular websites___________people can sell goods to each other.
| A．where | B．which | C．when | D．whose |
—James didn’t turn up last night, did he?
—No. He_________.we had changed our plan.
| A．shouldn’t have come | B．needn’t have come |
| C．didn’t need to come | D．needn’t come |