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 |
—Hurry up．It’s almost time for school．
—Don’t worry．We are sure to be at school________．
| A．at times |
| B．on time |
| C．all the time |
| D．by the time |
音的是___________