Do you know the man ______ is cooking now?
—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.
—When I was young, I used _________ swimming in winter.—Me too.