Many people worry that air pollution might changes in the weather around the world.
| A．add to | B．lead to | C．turn to | D．belong to |
Are you ________ of the mistakes you made in your final English test?
| A．awared | B．unforgettable | C．awaring | D．aware |
Some of this heat near the earth’s surface _________ make electricity.
| A．is used for | B．is used to | C．gets used to | D．used to |
The cunning fox tricked the little rabbit _________ picking up the carrots in the field and then caught it.
| A．on | B．into | C．along | D．to |
You must keep ____ in mind _____ your are a student in this school and should obey the school rules.
| A．it ; that | B．everything ; which | C．such ; as | D．something; because |
A cook will be immediately fired if he is found _____ in the kitchen.
| A．smoke | B．smoking | C．to smoke | D．smoked |