Nuclear science should be developed to benefit the people harm them.
---Where___?—I got caught in the heavy traffic, or I ___ here earlier.
---Do you often stay up?---No. I always get a good night’s sleep _______ much work I have to do.
Born and ______ in Central China’s Hubei Province, Wang Luoyong learned Peking Opera at the age of 11 in Hubei Experimental Peking Opera School.
Parents ___ much importance to education. They will do their best to give their children that priceless gift.
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.