—I’m worried about my English.—_____ harder, _____you will catch up with your classmates.
Why did you tell Amy about that? She has a big mouth and can never____ secrets.
The doorbell is ringing. Would you please go to see?
There are so many kinds of mobile phones in the shop: We can't decide
- The cinema is quite nearwalk over there? -All right.
- Has your father stopped smoking? - Not yet. It's quite hard for him to