Dear John,
Thank you for your letter. I'll tell you about my parents too.
My parents are quite young: my mum is thirty-seven and dad is forty. We usually get on very well, although we do not always agree with each other. I know they worry a lot about my safety, that is why I can't say that I do everything I want to.
What I like about our relationship is that we always talk and listen to each other. I think I have quite a lot of freedom, but I have worked for it. My parents allow me to do all the extracurricular activities I want, and go to whatever parties I want to go to as long as I study well and stay out of trouble.
I can say I trust my parents and they trust me.
You write that you have an elder brother. Do you get on well with him?
Best wishes,
(ваше имя)
угольный газ использовался в качестве топлива для дизельного двигателя. (was used - Past Simple Passive)
2. Thanks to new cars with greater capacity, the freight turnover will
be increased. - Благодаря новым вагонам с большей грузоподъемностью будет увеличен грузооборот. (will be increased - Future Simple Passive)
3. About 60% of the Moscow-St. Petersburg railway line is equipped with
an auto – block system and over one third is electrified. - Около 60 % железнодорожной линии Москва - Санкт-Петербург оснащено системой автоблокировки и более трети электрифицировано. (is equipped, is electrified - Present Simple Passive)