We are faced with the necessity to recognize that having more people implies a lower standard of living.
The book is not easy.____ it's rather difficult.
The number of the employees has grown from 1,000 to 1,200. This means it has risen ____20 percent.
He spoke loudly ____ the audience could hear him clearly.
What idea can a man who is blind from birth have_____ color?
I don' t know ____ to stay at home or go out.