Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.
The economic plan announced by the government soon after the crisis was greeted enthusiastically .
Do please your work; you must concentrate on what is important for your future development.
As technology continues to advance,we must learn and adapt or we'll risk becoming a dinosaur.
Although China has developed its economy greatly, its per capital GDP is still one-tenth of the United States.
--What should I do? ---You should slow the bleeding by pressure to the wound until the police and ambulance arrive .