Waste paper shouldn’t everywhere. We must keep our school clean.

Why does Mr Black look so sad this morning?—I hear that a fire________in his house and lots of valuable things were burned last night.

_________ did you work out the problem in such a short time—With Mr. Li’s help.

I now know why Mao impresses everyone who meetshim the way____he does things.[ ]

Susan __________ for our newspaper any moreShe has been hired by a fashion magazine