Trắc nghiệm: Mark the letter A B C or D to indicate the word whose underlined part differs from the other three in pronunciation,Mark the letter A; B; C or D to indicate the word whose underlined part differs from the other three in pronunciation,Mark the letter A; B; C; or D to indicate the word whose underlined part differs from the other three in pronunciation,Mark the letter A B C or D to indicate the word whose underlined part differs from the other three in pronunciation,Mark the letter A. B. C. or D to indicate the word whose underlined part differs from the other three in pronunciation