Trắc nghiệm: Mark the letter A B C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions,Mark the letter A; B; C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions,Mark the letter A; B;C; or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions,Mark the letter A. B. C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.,Mark the letter A. B. C or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions,Mark the letter A. B. C. or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.,Mark the letter A. B. C. or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions