1.The barber __(cut) a boy's hair when the light ___ (go) out
2.Great changes ___ (take place) in my hometown in the last few years
3.He said ,"I'll help you with your project next month." (变为间接引语)
4.We often see that te goes into that building(改为简单句)
5.they don't know how to make progress in the future(变为复合句)
6.There will be a little water left at least on the earth (变为反意疑问句）
7.Stop storing them ,or you'll run out of room(改为同义句）