Vii. перепишите и переведите предложения, употребив прилагательные, данные в скобках, в сравнительной или превосходной степени. 1. airplanes are (fast) but (expensive) means of transportation. 2. the maintenance cost of a diesel locomotive is three times (great) than that of an electric locomotive. 3. the internal combustion engine is (powerful) than the steam engine because it uses (good)-quality fuel: petrol or kerosene. 4. construction of the permanent way became (easy) and (quick) after the invention of special track-laying machines and other equipment. 5. passengers traveling from moscow to vladivostok move the hands of their watches seven times because the trans-siberian mainline, (long) railway on our planet, crosses seven time zones.