The old man has__ __ useful horse and horse can do a lot of things for him.
| A．an; a | B．the; a | C．an; the | D．a; the |
The propgram also provide them _____ job training so that they can live a normal life.
| A．of | B．with | C．for | D．To |
—It smells terrible. What has happened here?
—Look, there is much waste gas _____ from the chemical factory.
| A．pour | B．pouring | C．poured | D．pours |
—Have you finished your homework?
—Not _____. There are still some exercises to be done.
| A．already | B．yet | C．just | D．ever |
_____ the environment is important for human beings.
| A．Take care of | B．Taking care of |
| C．Took care of | D．Take the care of |
This is the most beautiful park I have _____ visited.
| A．ever | B．yet | C．never | D．already |