Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Đáp án đúng là: D
Giải thích
sovereign /ˈsɒvrɪn/
fountain /ˈfaʊntɪn/
determine /dɪˈtəːmɪn/
routine /ruːˈtiːn/