A. concerned
Đáp án C
Kiến thức về cách phát âm đuôi -ed
A. concerned /kən'sɜ:rnd/ B. cleaned /kli:nd/
C. learned /lɜ:nid/ D. opened /’əʊpənd/
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.