Ответ: Taxis in Britain are safe.
Buses in Britain are safer than taxis.
Trains in Britain are the safest of all.
Taxis in Britain aren't as safe as trains.
Buses in Britain are fast.
Taxis in Britain are faster than buses.
Trains in Britain are the fastest of all.
Buses in Britain aren't as fast as trains.
Buses in Britain are comfortable.
Taxis in Britain are more comfortable than buses.
Trains in Britain are the most comfortable of all.
Buses in Britain aren't as comfortable as trains.