Here are the words but the letters are mixed up. write the correct variant: 1. eenb 2. oughtb 3. aughtc

1. been
2. bought
3. caught

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.

Doing sports have a lot of advantages. First of all, doing sport helps  keep fit and be more healthy. Sport is a wonderful kind of hobby. It is not only useful but also funny. Team sport games like football or basketball teach us how important to work together to succeed. Sport helps people to rest after work and be more energetic. People who do sports regularly avoid stress. Doing sports with friends and members of family is a  good way to spend time together. I strongly recommend to do sports to stay healthy and beautifulfor a long time.