It is no use _________ to persuade him ________ smoking because he has been addicted to it since he wasyoung.
As the quality of the city’s air continues to give rise to ______, the residents are encouraged to set off fewer fireworks.
I’d rather ride a bike as bike riding has _____ of the trouble of taking buses.
As a simple and convenient way to get ______ latest fashions online, online shopping also has ______ major problem — you can’t see whether they fit or not.
When ____ to danger and conflict, men tend to increase blood pressure, ______ nervous and anxious.
I lost sight of Wang Ping when we reached _________ looked like a large market.