1.
1.Last sunday, Linda was at the sea.
2.You shouldn't run down the stairs.
3.Dose you have a sore throat, Mai?
4.What is the matter with your mother?
2.
Heliopters fly, but they are not likes plane. Most planes carry more people and are bigger than heliopters. Heliopters can fly down and up, and they sometimes go quickly and sometimes very slowly. Heliopters are good or talking people and from places which are dificult to go quickly - moutain, for example. People who need to go to hospital very quickly sometimes go with heliopters. Heliopters hepl a lot of people.