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4. My father used to visit that famous museum when he was 11.
5. In order to improve his English, he practices English every day.
6. It's healthy and interesting to play sports.
7. His parents told him not to stay up late.
8. Mrs.Anh used to be a famous writer when she was young.
9. Our grandmother used to sew lots of new clothes.
10. The manager told us not to eat or drink there.
11. It's very dangerous to play with a match.
12. They are going to buy a new dictionary to improve their Spanish.
13. My best friend used to send me letters.
