The rapidly growing birth rate brings about a lot of environment problems, which the government is supposed to take _____.
--- Why don’t you try his phone number right now? --- _______. I’ll try it.
--- We are too busy to take _______ holiday at present. --- But I think we’ll be able to take _______ two weeks away.
The terrible fire broke out suddenly. The family, luckily, was able to _____ it in time.
Chinese exports have been hit hard by falling world demand, with millions of workers _______ to their villages after the factories that employed them closed down.
The US is about the same size as China, but its population is five times ____.