---Boys, don’t swim in the Fengcheng River!
---Why not? Isn’t it deep enough _____?
| A．to swim across | B．to swim in |
| C．swim on | D．swimming on |
Jim, _____ look outside. Look at the map.
A. doesn’t
B. don’t
C. isn’t
---Let’s go to see the action movies.
---________________.
A. Yes, we do.
B. No, we don’t.
C. That sounds exciting.
Elephants are very friendly and they like______ grass.
A. eat
B. to eating
C. to eat
Shanghai is bigger than _____ city in China.
A. any B. otherC. any other
Listen! Who ____ behind the tree?
A sings
B. is singing
C. singing