The country has already sent up three unmanned spacecrafts, the most recent at the end of last March.
It is commonly assumed that the growth of GDP and the development of people’s living conditions are not _______cause and effect.
—How much is too much for a schoolbag?—Experts say students should carry_______ more than 10 or 15 percent of their body weight.
Although the huge engine, as tall as 25 meters, is heavy_______, it is powerful and works well.
Some people haven’t realized something as common as _______to the sun for a long time will do harm to their skin and even cause skin cancer.
He travelled to many mountains and saw many poor children, which _______his life.