A. carbon dioxide B. air conditioning C. them D. drug A. typical B. bamboo C. as well D. awesome A. amount B. cameraman C. afternoon D. different A. people B. carelessly C. opera D. lasting A. alone B. immensity C. ornament D. traffic lights A. high jump B. exquisite C. look at D. gather A. keep B. Europe C. fight D. a cup of A. cat B. as well as C. pay D. Miami A. zoo B. idiom C. influential D. communicate A. Poland B. turbulent C. over D. run out