Frank thinks math is easy, ______ I think it’s difficult.
You bought one daily newspaper, _________ you?
—Can you speak a little louder? I can ______ hear you. —OK.
_______ Peter is old and weak, he still has to work.
John’s parents were worried that he _________ too much time chatting with friends on the phone.
—Mr. Green _________ his son.—Yes, he enjoys talking about his son with any friend of his.