II. Choose the word (A, B, C or D) whose main stress is placed differently from the others in each group.

3. A. helpline                                     B. massive /ˈmæsɪv/

    C. orbit /ˈɔːbɪt/                                 D. career /kəˈrɪə/

4. A. emergency /ɪˈmɜːʤənsi/             B. illiterate /ɪˈlɪtərɪt/    

 C. independence /ˌɪndɪˈpɛndəns/     D. machinery /məˈʃiːnəri/