задание 6,7 помогите пожалуйста

1. The automobile is faster than bus, but it is not as fast as plane.

2. The  train is more expensive than the bus, but it is not as expensive as the plane.

3. The taxi is not as cheap as the bus, but it is faster than the bus.

4. The high speed train is not as expensive as the plane, but it is more comfortable than the train.

5. The bus is the cheapest.

6. The plane is the most comfortable.