---Jack was late for Mr. Smith’s oral class this morning. ---______? As far as I know, he never came late to class.
______, I think, the problems can be settled in no time.
Play, often seen as____activity for kids, is still important in_________development of teenagers.
Low-carbon lifestyle is of great benefit to improve the world environment.can be enjoyed from it until you have a deep understanding of it,however.
The scientist was rewarded by the government forsuch a great,contribution to the country.
Too high house prices can be brought under control,the authorities introduce a series of regulatory policies.