Ответ:
Краткое пояснение: Составляем сравнительные предложения, используя предоставленные слова и конструкции as ... as или not as ... as.
- Planes aren't as dangerous as helicopters.
- Skateboards are just as exciting as motorbikes.
- Buses aren't as expensive as trains.
- Cars are as fast as taxis.
- Bikes aren't as noisy as motorbikes.
- Planes are as comfortable as trains.
Ответ: