Điền word form (5 câu này với ạ) 11. His busy schedule made him completely _________ to his students. (access) 12. Various _________ by police officers were brought up to light by the enquiry. (practice) 13. He works for UNESCO in a purely _________ role.(advice) 14. Some referees in the V-league lack _________ .(part) 15. Children who grow up in time of war are more likely to be _________ then others. (adjust)