—He is suffering from __________ in his back, but he is still working. —Maybe he knows no __________, no gains.
Lei Feng is always ready to help others when they are in trouble and he never _______ their request.
The TV set he _________ works well now.
There are a lot _______ people today than yesterday.
Wang Wei is one of many Chinese students _______ “on the go’.
With the development of science and technology, people’s life _______ in the past few years.