Vietnam is ______________ the U.S.A. (small)
smaller than
What's ______________ animals in the world? (fast)
the fastest
Planes are ______________ cars. (fast)
faster than
Who's ______________ the other, Thien or Nguyen? (slow)
slower than
Pacific Ocean is ______________ ocean in the world. (wide)
the widest
What's ______________ animal in the world? (big)
the biggest
Giraffes are ______________ animal in the world. (tall)
the tallest
Long is ______________ Khang. (short)
shorter than
Nile is ______________ river in the world. (long)
the longest
Turtles are ______________ rabbits. (slow)
slower than
Do you know ______________ waterfall in the world? (high)
the highest
Mount Everest is ______________ mountain in the world. (high)
the highest
Lake Baikal is ______________ lake in the world. (deep)
the deepest
What's ______________ rainforest in the world? (large)
the largest
Who's ______________ person in your family? (old)
the oldest
Elephants are ______________ mice. (big)
bigger than