---I hear the government is going to ___ the air quality with the new standard PM2.5,isn’t it?---Yes, ___ the air pollution will get more serious.
--- I hear Sam has gone to Qingdao for his holiday. --- Oh, how nice! Do you know when he ?
---Have you ever traveled abroad? ---Sure. Iin a small town in the USA with my grandparents.
--- How beautiful your school is! -- Yeah, itto be one of the most beautiful schools in our city.
His bike is broken. He askedif I would like to share with him.
--- Why did you laugh just now? --- John wanted to tell usvery funny joke, but he forgotend himself.