John is weak. He should eat a balanced diet to ______.
—How much does this young elephant _______ ? —50 pounds ______, because it eats a lot for a meal.
.--- I'm feeling so tired now. ---stop and have a rest?
— We never _____ heroes’ life though we’re interested in. — Really? I’ll offer you some books about it.
----Tom, what do you think of the school? ----Oh, no other school is _______ in the city. It’s _________one.
She is ready to help people ________.