.---What______do you like?---I like tennis.

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

They are          bedrooms.

—What’s your ________ , Rick?—I like playing basketball.

As young adults, it is our_____ to try our best to deal with each challenge in our education with the help of our teacher.