6. A friend invites me to have lunch with his family at Tet. (wait for the elders to start the meal)→........................................................................................................................................................................7. I play tennis badly. (practice tennis more regularly)→........................................................................................................................................................................8. My classmate usually comes to class late. (not get up late)→........................................................................................................................................................................9. His Mum is always busy doing the housework. (help her)→........................................................................................................................................................................10. My little sister likes sweets. (not eat sweets too much)→...............................................................................................................................................................