Mr. Green told us _____ turn the lights off when we leave the classroom.
| A．not forget to | B．not to forget |
| C．not to forget to | D．to forget not to |
There _____food and more people____100 years.
| A．will be fewer; in | B．will be less; after |
| C．will have fewer; in | D．will be less; in |
Tom wants to be_______ engineer when he _________up.
| A．an ; grows; | B．an; will grow |
| C．a; is growing | D．the; grow |
“Everybody is playing basketball outside. Can I join them, Dad? ”
“_____________, you must finish your homework first. ”
| A．Why not? | B．Will you |
| C．I’m afraid not | D．I hope not. |
What are they__________ the police in the meeting room?
| A．discussing about | B．discussing with |
| C．talking about | D．talking with |
It’s cold outside today, You’d better___________your coat.
| A．to put down | B．put up | C．put out | D．put on |