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

3. A. apple /ˈæpl/                                 B. butter /ˈbʌtə/          

 C. mother /ˈmʌðə/                           D. advance /ədˈvɑːns/

4. A. protection / prəˈtɛkʃən /              B. referee / ˌrefəˈriː /

    C. dictation / dɪkˈteɪʃən /                 D. increasing / ɪnˈkriːsɪŋ /