3. If there is heavy smoke, cover your mouth and nose and stay (14). 2. Move quickly but do not use the elevator. Use the stairs whenever possible. 4. Call emergency services at once if you are in (15). should (16) Question 13. A. inside Question 14. A. down for help immediately. B. onto to the ground. If someone is trapped inside, you D. over D. aside B. over C. out of C. away Question 15. A. danger Question 16. A. listen B. dangerously B. call C. endangered C. watch D. dangerous D. open