1. I'm not going to school at the moment because of a broken leg. If I had fastened the seatbelt, I wouldn't have broken my leg.
2. Kelly and I have been married for five years now. If I hadn't gone to that Christmas party, I wouldn't have met my lovely wife.
3. I'd like to ask for a promotion. If my salary were bigger, I would travel abroad each year.
4. If my salary in my previous company had been bigger, I would have travelled abroad each year.
5. I know he is a big mouth. I wouldn't have believed him unless I had seen a photo.
Объяснение:
1)The first steam trains were looked at with great interest. На первые паровозы смотрели с большим интересом.
2)A new railway track will carry a greater volume of freight. - Новый железнодорожный вагон будет перевозить больший объем груза.
3)The number of passengers will increase in summer. Летом число пассажиров увеличится.
4)I was waked up by the ticket inspector. Меня разбудил билетный контролер.
5)Modern electric and diesel locomotive work at higher speed. Современные электро и дизельные локомотивы работают с большей скоростью.
IV.
1) There are various fields of application of diesel engines.Существуют различные области применения дизельных двигателей.
2) Are there usually two conductors in the carriage? Существуют ли обычно два проводника в карете?
3) There are no conductors in the freight car. В грузовом вагоне нет проводников.
4) How many stations will there be on this Metro line?Сколько станций будет на этой линии метро?
5) There is a new railway station in our city.В нашем городе есть новая железнодорожная станция.