11. first aid kit 12. junk food 13. a checked woolen cushions 14. a rectangular plain silver frame 15. fizzy drinks 16. a stationary shop 17. a big queue of people 18. cool as a cucumber 19. low fat yoghurt 20. You are what you eat

Have been tested - Новые три вагона поезда-цистерны были испытаны в суровых зимних условия на ж/д в Аляске.
will have been completed - Строительство моста и дамбы будет закончено к началу сезона навигации.
are being constructed - В настоящее время в Европе и Азии строятся 2500 км скоростных линий.
maintains - система кондиционирования воздуха всегда поддерживает оптимальную температуру и влажность в вагоне.
is being built - В настоящее время новая высокоскоростная железнодорожная линия строится на севере России. 
has caused - Потоп значительно повредил железнодорожную ветку.

1. It's not always easy for the old and the young to find a common language.
2. Don't envy the rich: money doesn't always bring happiness.
3. Governments have to develop social programs to help poor people.
4. I quite like old houses: they have an atmosphere of their own.
5. You don't look beautiful today!
6. Looking after the sick is a real art.
7. The beautiful are often admired.
8. Deaf people often use their hands to communicate in sign language.
9. Some of her relatives were among the dead and injured.
10. Have you ever been unemployed?
11. All parents want to see their children among the happy.