— Are you willing to live on Mars（火星） one day?
— ______________ It sounds exciting, but it still worries me.
| A．Of course I am. | B．I’m not sure. |
| C．Why not? | D．Are you joking? |
.—His father ______an actor , didn't he ? —Yes, he did .
| A．used to being | B．used | C．used to be | D．uses to be |
I didn't sell it. I _______it________.
| A．put…up | B．put…on | C．put …down | D．give …away |
The little boy is very brave. He ____ through the jungle with us last week.
| A．trek | B．treked | C．trekes | D．trekked |
We find _____ important to use a foreign language well.
| A．that | B．it | C．this | D．its |
—Do you like ZhouJielun or Liu Dehua?
— ________. I am not their fans
| A．Both | B．Either | C．Neither | D．All |