We must study hard for our exams.
A train is faster than a trolley.
A cheetah is faster than a horse.
Don’t talk loudly in the library, please!
Last Sunday, I went to the park and played with my friends.
He reads quietly.
A giraffe can run very fast.
Fansipan is higher than Bach Ma mountain.
A mouse is smaller than an elephant.
The elephant walks slowly.
