—_____ does your mother usually go to the office? —By bus.
| A．Where | B．What | C．How | D．When |
Fruit and vegetables are good for us. We need them __________ healthy.
| A．keep | B．keeping |
| C．to keep | D．keeps |
Nowadays, if people don't want to cook, they can choose to eat out, but they are asked ______waste any food.
| A．not to | B．not |
| C．to | D．don't |
- Dad, why must I stop______ computer games?
- For your health， my boy.
| A．play | B．to play |
| C．to playing | D．playing |
—Let’s _________ some chicken. —Great! I like chicken.
| A．like | B．has | C．to have | D．eat |
— What does your mom tell you?— She tells me ______ my room every day.
| A．clean | B．cleans |
| C．to clean | D．cleaning |