一 Why do you choose to work in an international travel agency?一 Well, you know, English is my  . So it is my best choice.

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

 _______ came that our team won.

One thousand dollars a month is not a fortune but will help cover my living ___________.

—Can you help me with this question, Tom?  —Sorry, it is beyond my________.