The final tests are coming, and the students _______ hard for them these days.
| A．study | B．will study |
| C．are studying | D．studied |
Keep________till you see the light，then turn right．
| A．walk |
| B．to walk |
| C．walked |
| D．walking |
The children decide________ their schoolyard this Friday afternoon．
| A．clean |
| B．to clean |
| C．cleaning |
| D．cleaned |
After all the students took their seats，the headmaster________．
| A．show up |
| B．show off |
| C．showed up |
| D．showed off |
You’d better make a good plan________you take a holiday．
| A．before |
| B．during |
| C．until |
| D．after |
This bus doesn’t go to the train station．I’m afraid you’ll have to________at the library and take the A52．
| A．take off |
| B．put off |
| C．get off |
| D．turn off |