Choose the word with an underlined part pronounced differently

I/ Choose the word (A, B, C or D) with an underlined part pronounced differently: (2pts)

1.     A. generation                 B. competition     C. question           D. conversation

2.     A. musician          B. social               C. ocean               D. century

3.     A. leisure              B. sure                           C. pleasure           D. measure

4.     A. exhibition                  B. anxious            C. social               D. revision

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