When they saw their teacher into the classroom, they stopped at once.
| A．walk; to talk | B．walking; to talk |
| C．to walk; talking | D．walking; talking |
Do you know the answer _______ this question?
| A．of | B．for | C．in | D．to |
I usually watch game shows on weekends because they are_______ interesting.
| A．a kind of | B．kind of | C．all kinds of | D．kind |
_______ I work with my classmates after school.
| A．Sometimes | B．Some times | C．Sometime | D．Some time |
There are many supermarkets in this town, but we think this is _______ of all.
| A．good | B．well | C．better | D．the best |
We are very _______ that many students use the Internet every day.
| A．surprise | B．surprising | C．surprised | D．surprises |