(hot)
Hanoi is hotter than Ho Chi Minh city.
(big)
The U.S.A is bigger than Vietnam
(tall)
Chelsea is the tallest person.
(hot)
Hanoi is the hottest city.
(fast)
Airplane is the fastest vehicle.
(small)
The kitten is smaller than the cat.
(funny)
Johnny is the funniest boy.
(fast)
The cheetah is faster than the mouse.