----- Nội dung dịch tự động từ ảnh ----- fir chu dong sang bi dong 1. They started a dancing class last week 2. MrSmith saw the accident 3. Somebody has taken my briefcase 4 The teacher returned our written work to us 5. She has finished the report by noon 6. The mad dog bit the little boy 7. The police have arrested five suspects 8. The doctor ordered him to take o long rest 9 They started a dancing class last week 10. MrSmith saw the accident 11. Somebody has taken my briefcase 12. The teacher returned our written work to us 13. She has finished the report by noon 14. The mad dog bit the little boy 15. The police have arrested five suspects 16. The doctor ordered him to take o long rest 17. They are sweeping the streets mail