listening listen to two people talking about an app.Match the information to the speaker , Sara (S) or David (D)​

1. Bill has been away from work all this week.
2. Glenda worked extremely hard when she was a student.
3. Pippa __has been__rather unfriendly recently.
4. Eric ___had opened___the door before I rang the bell.
5. How long __hasNeil ___had___his present job?
6. ___Has___Tina__visited___her parents since she got married?
7. Why ___didyou putyour coat on? It’s not cold.
8. Jock __complained___to me about his problems last night.
9. Fred ___forgot___his map. We’ll have to go back for it.
10. Jane __ernedmore money in her last job, but she enjoys this one more.

Alot of factories produce waste and is drained into rivers. so the water in the rivers becomes poisoned. the hole in the ozone layer is very dangerous to humans: ultraviolet radiation passes through them and reaches the ground. such radiation may cause dangerous diseases. the population of many countries is suffering from lack of water. nuclear weapons can produce terrible destruction on our planet. nuclear power plants are not so “clean” as some believe: they become the source of the contamination. the environment is everything you see around you. today people understand the need to keep it clean, if humanity wants to survive.