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Rty

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Определить время и залог глагола;найти модальный глагол ;определение или причастие определить форму и группу   0 ответов

The scheme adopted for the tunnel is of great technical interest. First of all the tunnel has a very deep grade. Actually it is so steep that the rack and pinion system had to be used to ensure a safe operation of electric trains in the tunnel.
The second feature of the tunnel is a great volume of earth-work involved in its construction. The first underground station is located at a height of 2,820 m. here galleries were bored through the rock…
английский язык обучение   Rty   22 фев 2017 10:56  
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