——This wall of air is an effective answer to the problem and it ____ work.
——But it is a question to put such a wall of air around the statue.
| A．may | B．must | C．should | D．could |
This is the way________I have thought of to solve the problem.
| A．how | B．that | C．in which | D．in that |
A government，which is responsible for society，must________to its people how important the method is to prevent AIDS.
| A．get through | B．get on |
| C．get over | D．get across |
His mother had thought that it would be good for his character to________from home and earn some money on his own.
| A．run away | B．take away | C．run away | D．get away |
We live in an age________many things are done on computer.
| A．which | B．that | C．whose | D．when |
I have offered to paint the house________a week's accommodation.
| A．in exchange for | B．with regard to |
| C．by means of | D．in place of |