—Whose T—shirt is this? Is it John's?
—It ______ be his. It's too small for him.
| A．can't | B．may | C．must | D．needn't |
—________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 |
Would you please________my baby while I’m cooking？
| A．take out of |
| B．take care of |
| C．take part in |
| D．take away from |