Câu 47:
Mark the letter A, B, C, or D indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions: mention, confusion, presentation, nation
mention /ˈmenʃən/
presentation /ˌpreznˈteɪʃən/
confusion /kənˈfjuːʒən/
nation /ˈneɪʃən/
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