_________ people lost their lives in the accident.
A. Two thousands B. Two thousand of C. Thousands of
—There is something wrong with my foot．Dad，could you please________？
—No problem．
| A．cheer me up |
| B．give me a lift |
| C．look after me |
| D．make me a ride |
—Always look around________you cross the street，David．
—OK，I know，Mom．
A．until
B．before
C．unless
She looked at me________disbelief when I told her the news．
| A．with |
| B．on |
| C．in |
| D．for |
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 |