—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.

Here is         my family.

I’d like a ____ for dessert. Fruit, you know, is good for health. 

-----Is this a photo of ___________family?-----Yes, it is.

Tom and Mike are _____________.