Переведите предложения, употребив прилагательные, данные в скобках, в сравнительной или превосходной степени.

The double-track railways are (convenient) than the single-tracr railways if the traffic on these lines is very heavy. The bridge crosses the river at its (narrow) point.The cost of tickets in a sleeping car is (high) than the fares in an open- type coachbecause sleeping cars sre (convenient) for traveling. Our (good) diesel locomotive develops a speed of 170 km per hour.