ACROSS -> 4. The opposite of "pass" in an exam. 5. A substance that is used as narcotic. 9. Feeling a need or desire to eat food. Chambre 10. Not doing well in school, or falling behind in studies. 11. A harmful substance often abused at school. (tabaco) D 1 ir 2 d 3 6 S 7 y 12. A place where student​