Jogging every morning is ________ good habit. Stick to it, and you'll make ________ great progress.
| A．a; / | B．a; a |
| C．the; a | D．/; / |
._____________ 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 |
The fact __________she hasn’t know the result of the examination is a great surprise to me.
| A．which | B．that | C．what | D．when |