Jim was watching a late night film______ the television went blank.
| A．while | B．since | C．until | D．when |
—I used to play tennis，but now I’m on the swim team．
—________．
| A．Thanks |
| B．Good idea |
| C．All right |
| D．People sure change |
—________you________go to school by bike？
—Yes．But now I usually go to school by bus．
| A．Did；use to |
| B．Were；used to |
| C．Do；use to |
| D．Will；use to |
My grandmother________a lot of changes in Tianjin since she came here．
| A．sees |
| B．can see |
| C．will see |
| D．has seen |
—We’re supposed to recycle paper and bottles．It can help the environment．
—________．It can save money，too．
| A．It’s nothing |
| B．Best wishes |
| C．I agree |
| D．Never mind |
The number of books in the bookshop is about 10，000 and a number of them________about science．
| A．is |
| B．was |
| C．are |
| D．were |