Was it what he said _____ made her so sad ? A. which B. why C.what D that
Their products enjoy 30 percent ________ of the market in this country because both the quality and their service are fine.
With temperature ________ so rapidly, we could not go with the experiment.
How did it ________ that the ancient building was burnt down in an hour?
—An ant has two stomachs—one for itself, one for others. —Really? Quite interesting. I ________ anything about it.
Noise is unpleasant, ________ when you are trying to sleep.