. He was in hospital for six months. He felt as if he was ________ from the outside world.
Our government means to __________ the gap between the rich and the poor by increasing the tax on one's income.
As early as his second film, Chaplin had developed his own manner of acting, the one that __________ world famous.
The natural resources, such as mine, forest, and hydropower (水电)in that area have been __________.
The matter __________ to our study requires __________ with carefully.
Dogs have a very good __________ of smell and are often used to search for survivors in an earthquake.