生活中,人们所称的雾霾天气,其实并不是一种天气现象。雾由水汽组成,水汽遇冷结雾,雾的颗粒一般比较大;霾则是干性东西,由细小的颗粒物组成,基本在微米量级。这表明
_________. Is this your pen?
We like________and_______.
This is _________ alarm clock.
His brother is ______________, he can’t play ______________ the dog.
-- Why doesn’t Jim like Chinese? -- _________