| A | answer |
| B | answering |
| C | to answer |
| D | answered |
The teacher told the students ___ any food into the computer room.
| A | not to bring |
| B | not bring |
| C | don’t bring |
| D | bring not |
| A | bought |
| B | to buy |
| C | buying |
| D | been bought |
Mr Wang does what he can ___ us improve our English.
| A | help |
| B | to help |
| C | helping |
| D | helped |
The woman made his son ______ finally after she told him some jokes.
| A | laughed |
| B | to laugh |
| C | laugh |
| D | laughing |