1. A.require B.narrow C.enough D.effect 2. A.physician B.criminal C.average D.skyscraper 3. A.highway B.increase C.imagine D.present 4. A. picture B.foreigners C. export D.record 5. A.millionaire B.difficult C.criminal D.helicopter 6. A. exist B. notice C.avoid D.support 7. A.prohibit B.pavement C.triangle D.tricycle 8. A.automated B.biogas C.celebrate D.animation 9. A.available B.alternative C.affect D.automated 10. A. celebration B.cannon C.chaos D. biogas 11. A.criminal B.culture C.circle D.consumption 12. A.critic B. disaster C.driverless D. density 13. A.hunger B.major C.megacity D.invest 14. A.metro B.nuclear C.illegal D.panel 15. A.pedal B.poster C.performer D.poverty 16. A. recommend B.railway C. project D.safely 17. A.scary B.season C.review D.seatbelt 18. A.serious B.shortage C.teleporter D.solar 19. A.horror film B.slogan C. spacious D. prohibitive 20. A. alone B.amazed C.busy D.polite 21. A.annoy B.reserved C.volunteer D.agree 22. A.arrange B. exhibition C. assistant D.commercial 23. A.conduct B.device C.satisfactory D.directory 24. A. academic B.transmit C. experiment D.precausion