Recently the Ministry of Environmental Protection issued a circular saying that China may adopt flexible working hours and stop school classes_____the highest air pollution warnings.

I got that job I wanted at the public library. — ___________! That’s good news.

He has accepted the job because he likes challenge, and the chance of dealing with difficult problems ____ to him.

The firstprize goes to _______ makes the greatest contribution to the company.

The pricesystem is a complex network composed of the prices of all the products boughtand sold in the economy as well asof a great number of services