| A．floating | B．allow | C．grow | D．Known |
-Do you know________the meeting？
-Tomorrow morning．
| A． | when they had |
| B． | when they are going to have |
| C． | when did they have |
| D． | when are they going to have |
Ann often helps me________math after school．
| A．for |
| B．with |
| C．on |
| D．by |
—Why not________your teacher for help when you can’t finish________the story by yourself．
| A．to ask：write |
| B．to ask；writing |
| C．ask；writing |
| D．asking；to write |
—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 |
Recycling is good，so don't________bottles or newspapers．
| A． | find out |
| B． | hand in |
| C． | use up |
| D． | throw away |