economy society necessity facility3/50Mark 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.economy society necessity facility Giải thíchĐáp án A economy /ɪˈkɑnəmi/ society /səˈsaɪəti/ necessity /nəˈsɛsəti/ facility /fəˈsɪlɪti/