If you don’t speak good English,you will be at a big      when you try to get a good job.

You have to be accurate in this job，because a small mistake can make a big ________.

China has got a good               for fighting against the flu with its careful and smooth organization.

Sometimes, the _____ of humor in this country causes misunderstanding in other countries.

As the quality of the city’s air continues to give rise to ______, the residents are encouraged to set off fewer fireworks.