Dan is younger than Harry.

French is more difficult than English.

Moscow is bigger than London.

Lisa is taller than Tony.

The black car is cheaper than the white car.

Robert is happier than Henry.

Dogs are more intelligent than cats.

My room is nicer than your room.

Tokyo is busier than Paris.

The girls are quieter than the boys.

cheap, better, more difficult, more popular, closer, further, worse, best, worse, safer