9. Lien's brother is practicing the guitar now.
10. My uncle and I go to the tennis club once a week.
11. They will fly to Brazil next month.
12. We are going to visit the Natural Science Museum next weekend.
13. You should invite our former classmates to your birthday party.
14. Trung usually borrows his brother's motorbike.
15. Our children have to do a lot of homework every day.
16. The souvenir shop is in front of the book store.
17. It's five kilometers from my house to the supermarket.