--Mr Lee，could you give me some advice on how to write an application letter?---With pleasure. Remember the letter should be written in the formal _____.

 —What’s your favourite Chinese traditional festival?—It’s       .

They are          bedrooms.

-You look so worried, what’s wrong?  -More and more people like me begin to worry about the ______ pollution after the haze (雾霾) appeared in Beijing and some other cities in China. 

________ like to eat bamboo and live in China.