In most countries, urban population is ____ while the population of German ___ by 8 percent.
| A．raise; decrease | B．increase; on the decrease |
| C．on the increase; decreases | D．rise; on the decrease |
There is a possibility that these hens could be frightened and lay fewer eggs a sudden loud noise.
| A．should there be | B．there was |
| C．would there be | D．there having been |
—I’m going to the post office.
—you’re there, can you buy me some stamps?
| A．Because | B．While | C．As | D．If |
—How long in America?
—Two years. I came back last month.
| A．have you studied | B．do you study |
| C．would you study | D．did you study |
What will we do when all the oil in the world has ?
| A．run out of | B．been given out | C．been used up | D．given off |
She was a person and wouldn’t let anyone or anything stop her.
| A．reliable | B．determined | C．stubborn | D．concerned |