—Do you know if the foottball game has started yet?—Started? It must be certain who ________ by now.
The latest data put forward by the states suggested that the business ___ improving.
He is _______ a good teacher. He is also his students' good friend.
---Are there any English story-books for us students in the library?---There are only a few, _______________.
Without proper lessons, you could ____ a lot of bad habits when playing the piano.
We thought of selling this old furniture;but we’ve decided to ____it. It might be valuable.