Từ câu 9 đến câu 14 với ạ ----- Nội dung dịch tự động từ ảnh ----- .you!! ger.... 9. you are banned to go into this area. (mustn't) ->>> You......... 10. Students are allowed to use books in this library to do the researches. (mustn't) Students.......... 11. It's obligatory for all drivers to have a driving licence.(must) →All drivers........ 12. It's not obligatory for customers to go on the trips organized by the hotel. (don't have) →Customers. 13. It's not necessary to go to school on Saturdays.(don't have) →You ........ 14. It's not necessary for you to shout. I can hear you perfectly well (don't have) →You....