И. А. Курбасова Е. И. Силантьева

Образец: The radial metro lines in Moscow are connect­ed by a circle line. Радиальные линии метро в Москве соединены кольцевой линией. The future metro lines are to connect the city's centre with its suburbs. В будущем линии мет-... , ро соединят (должны будут соединить) центр города с его пригородами.

1. 
   Some trains are to make stops at all railway sta­tions. 2. The experimental tracks are laid without ballast. 3. The train is to run a high-speed service between big cities. 4. Electrified railways are to be found in different countries of the world. 5. The track structure is supported by ballast. 6. The number of rail joints is to be reduced.