choir soil. noise. choice2/50Mark 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.choirsoilnoisechoiceGiải thíchĐáp án A choir /'kwaiə[r]/ soil /sɔil/ noise /nɔiz/ choice /'t∫ɔis/