The white-flag dolphin, ______ rare Chinese mammal, is in ___ dangerous state of dying out.
| A．the; / | B．the ; the | C．a ; a | D．a ; / |
Why? I have nothing to confess. _______ you want me to say?
| A．What is it that | B．What it is that | C．How is it that | D．How it is that |
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 |