I’m interested in animals, so I_______lots of time watching animal programs.
_______ 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.
The doctor says that the problem with her husband’s eyes ___by many reasons.