With more forests destroyed, huge quantities of good earth each year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |
If we don’t take some measures to protect this kind of plant, it will ____ soon.
| A．die out | B．die down | C．die from | D．die of |
–Do you know who invented _______ telephone?
- No, but it is really _______ most useful invention.
| A．the; / | B．a; a | C．the; a | D．a; the |
——Excuse me! Sir, is the swimming pool open all day?
——________.Only from 6:00 p.m. to 10:00 p.m.
| A．That’s right | B．Yes,of course |
| C．Sorry, I’m not sure | D．Sorry, I’m afraid not. |
——Are you satisfied with his answer?
——Not at all. It couldn’t have been________.
| A．the worst | B．better | C．worse | D．so bad |
The universities have got bigger in size , ________many more middle school graduates the chance of higher education.
| A．allows | B．allowing | C．allowed | D．to allow |