I like jokes and I laugh a lot, So I like watching          .

His name is David Brown．His family name is ________．

--What’s the _________of her birth?--It’s June eighth.

The people in western countries celebrate _________ by making pumpkin lanterns and wearing special costumes with masks.

—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.