The young man decides          up his company in beijing.

---I find the more we study, the more difficulty we have ________ out Maths problems.---Oh, I agree with you. Maths is more and more difficult.

Miss Wang asks the students          in the river, because it’s too dangerous.

You look _______ . Do you hear the _________ news?

At present, more and more people prefer _________ in the countryside because there is _____ pollution in the city.