We like the man ________works very hard and helps others very often.
Sam with his friend Helen _______ in Class Three. They are in Class One.
It’s important ______ people to understand each other.
Bob is _______ an English class. His teacher is talking ________ English.
— ________ your friend?—The boy in front of the old man.
Yingying often _____ hamburgers, French fries and Coke and her mother often cooks _______ Chinese food for them.