11. Mark isn't old enough to ride his bike to school
12. Nga is interested in listening to traditional stories.
13. Bao suggested meeting at the café corner.
14. Miss Jackson asked Tim to try his best to improve his pronounciation
15. I learn English so as to communicate with foreigner
16. My father told me not to make so much noise
17. They teach Maths well
18. He is interested in outdoor activities
19. We are going to join in an English club
20. It's such a difficult word that we can't spell it.
21. You need to revise new words regularly