5.He refused to defend himself against the slander and __________ hurled against him by the newspapers; he preferred to rely on his record.
(A) opprobrium (B) implication (C) fanaticism (D) extradition
11.Under pressure of public opinion, the president of a slaughterhouse in the largest-ever meat recall __________ admitted that his company had introduced sick cows into the hamburger supply.
(A) unanimously (B) frugally (C) skeptically (D) grudgingly
18.These folks, motivated by humanitarian considerations, became enthusiastic __________ of a vegetarian diet, saving the animals with every bite.
(A) proponents (B) clientele (C) alumni (D) receptionists
19.As urbanization continues, 6.4 billion city dwellers will need access to energy. That is, 80% of all greenhouse gases are caused by the __________ of cities for energy.
(A) ignition (B) liability (C) obligation (D) appetite
20.The __________ behind lung cancer is smoking and air pollution; thus, those who are susceptible to cancer are advised to avoid smoking and second-hand smoking.
(A) likelihood (B) culprit (C) magnet (D) catalyst