The students raise money for their school trip________newspapers．
| A．selling |
| B．on selling |
| C．by selling |
| D．to sell |
The teacher wants us_______the classroom.
| A．to clean | B．cleans | C．cleaning | D．clean |
too much candy is bad your teeth .
A. Eat ; to B. Eating ; to C. Eating ; for
－ I won the 800-meter race yesterday .
－ !
A. Thank you B. What a shame C. Congratulations
— Must we finish our homework today?
— No, you ________.
A．can’t B．mustn’t C．don’t have to
Don’t worry. We still have _______ time to catch the train.
A. a little B. a few C. little