№2
1) Metro.2) Because, travelling on subway is fast.3) The sleepers are only 0.9m long. They are shorter than those of the railroads track which 2.7m.4) The crossties of the underground railway are laid directly on concrete base.5) Yes, they are.6) From the London.7) The underground carrying capacity depends on the number of coaches which from 2 to 8 per train and the frequency of train running which ranges from 80 seconds to 10 minutes.
№3
1) This train will proceed to its destination without any stops. (Will proceed - Future.)2) The price of the ticket in the London Underground depends on the distance you travel. (Depends - common.)3) The invention of a steam engine started the first industrial revolution. (Started - past.)4) The top speed of the first steam locomotive was 13 miles per hour. (Was - past.)5) Students of technical institutes have practical training at various enterprises, and it gives them an opportunity not only to watch production processes but also to take part in them. (Have - common, to take - future.)