--- How is your grandma?--- She’s fine. She used to _____ TV at home after supper. But now she is used to _____ out for a walk.
Mr. Zhou was really anxious _____he can’t find his car.
— What would you do if you won the lottery? — I would give it_____ medical research.
That notebook _____ John’s. It has his name on it.
Iplay the piano when I was a young boy.
Teenagers should not _____ .