Замените предложения в действительном залоге (Active Voice) предложениями в страдательном залоге (Passive Voice), используя выделенные курсивом слова в качестве подлежащего.
Например:
Ships carry "heavy cargoes".
Heavy cargoes are carried by ships.
1. Coaches provide "seats for passengers".
2. In 1929, railroads handled "almost 75% of all loads carried between US cities ".
3. Early man probably used "great rivers" as his first means of traveling and communication.
great rivers
4. Railroads provide "two main types of service": passenger service and freight service.
5. Each working day, these trains carry "hundreds of thousands of suburban resi-dent "s to and from work in such large cities as Chicago and New York City.
6. Canadian railroads earn "about 80% of their income" from freight operations.
7. Today, they carry "less than 40% of the intercity freight".
8. The railroads receive "only about 15% of the country's mail revenue".