-When did your father come back last night?-He didn’t come back_________ he finished all the work.
—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.