Tìm và sửa lỗi sai: My sister teach english at a school in the countryside. It takes they three hours doing his homework everyday

Tìm và sua lỗi sai 1. My sister teach english at a school in the countryside. => 2. It takes they three hours doing his homework everyday. => 3. What an expensive hats. => 4. How many does it cost to send this letter to chaina. => 5. Marry is from france. She speaks france. => 6. My father has less days-off than tim's father. => 7. She spent two hours to do her homework last night. => 8. Hoa playing the piano in her room at the moment. => 9. Let I tell you something about my family. => 10. Does nam's mother go always to work by bus. => Tim giup mk nha! Cam on cac ban