50. We may infer that the author believes people should _______. (A)buy lottery tickets (B)make use of half-truths (C)not take anything at face value (D)not trust the Yucky Company

52. What can we know from the example of the Yucky Pill advertisement? (A)False statements are easy to see through. (B)Half-truths are often used to mislead people. (C)Doctors like to act in advertisements. (D)Advertisements are based on facts.