Trắc nghiệm: Read the following passage and mark the letter A B C or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43,Read the following passage and mark the letter A. B. C. or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43.,Read the following passage and mark the letter A. B. C. or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43,Read the following passage and mark the letter A. B. C or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43.,Read the following passage and Mark the letter A. B. C. or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43.