Viết lại câu: 9. Tuan didn’t apply for the scholarship last year. He regrets about it now. -> Tuan should 10. They weren’t able to see anything because it was dark then. -> They 11. My parents didn’t have to repaint our house because it was new then. -> It’s 12. It’s a good idea for all of us to have a short break now. -> I think we 13. It’s certain that Tom was in this room because his wallet was on the table then. -> Tom must 14. Maybe someone took her bicycle by accident. -> Someone may 15. What a pity! John didn’t join our trip to Hue. -> John should16. If I were in your shoe, I wouldn’t come to her wedding party. -> I think you 17. It’s possible that someone had dumped the rubbish in this area. -> Someone 18. There was no need for those men to finish their work yesterday. -> Those men 19. Perhaps Hoang sold his old smartphone, but I am not sure. -> Hoang 20. It’s high time those boys went to sleep. -> Those boys Giúp mình với ạ!