_____ people are generally better off, the gap between the rich and the poor has widened.
to his teaching work, she has no time to take care of her own child.
The sand in the river is increasing these years. We must to protect the environment.
The idea puzzled me so much that I stopped for a few seconds to try to .
Her joke went too far. It was more than I could .
The employee to impress the company with his cleverness and promptness.