Many teenagers think they ____ to play computer games on weekends.
| A．were allowed | B．should be allowed |
| C．are allowed | D．will be allowed |
Which of the following signs can be seen on the door of a shopping center?
A． |
B． |
C． |
D． |
The boy is busy ________ tomorrow’s lesson.
| A．worked on | B．preparing for |
| C．to work for | D．getting preparing to |
Hurry up! The match for ten minutes.
| A．has begun | B．had begun |
| C．has been on | D．began |
—I was told to be here before seven.
— Oh, you . I'm sorry for not telling you that we have changed the plan.
| A．mustn't | B．can't |
| C．won't | D．needn't |
—Which is the smallest number of the four? — .
| A．A quarter | B．A half |
| C．Two-thirds | D．Three-fourths |