Helen treats her students in a (耐心的) and understanding way.
Doing homework (careful) is a good habit and it helps a lot.
Li Fang is one of the most beautiful (teach) in our country.
It is (polite) to talk loudly in public places like a library.
It's a good habit to w hands before meals.
Look left and right to make sure it's safe before you go a the street.