You are creating something out of nothing, ________ means, in one sense, ________ none of it is true.
| A．that; that | B．which; that | C．which; which | D．that; which |
Their products enjoy 30 percent ________ of the market in this country because both the quality and their service are fine.
| A．features | B．shares | C．interests | D．sales |
With temperature ________ so rapidly, we could not go with the experiment.
| A．fall | B．falling | C．fallen | D．to fall |
How did it ________ that the ancient building was burnt down in an hour?
| A．happen | B．occur | C．take place | D．come about |
—An ant has two stomachs—one for itself, one for others.
—Really? Quite interesting. I ________ anything about it.
| A．don't know | B．have known | C．haven't known | D．didn't know |
Noise is unpleasant, ________ when you are trying to sleep.
| A．especially | B．specially | C．extremely | D．naturally |