I. Choose the word (A, B, C or D) whose main stress is placed differently from the others in each group.
- A. luxury /ˈlʌkʃəri/ B. humorous /ˈhjuːmərəs/
C. activist /ˈæktɪvɪst / D. volcano /vɒlˈkeɪnəʊ/
- A. preparation /ˌprepəˈreɪʃən/ B. innovative / ɪnˈnɒvətɪv /
C. conservation /ˌkɒnsə(ː)ˈveɪʃən/ D. disappointment /ˌkɒnsəˈveɪʃən/