Choose the word whose underlined part is pronounced differently

Ex1. Choose the word whose underlined part is pronounced differently.
1. A. whole B. when C. where D. while
2. A. notice B. socket C. enroll D. mobile.
3. A. engineer B. exercise C. experiment D. exhibition.
4. A. comment B. equipment C. improvement D. development
5. A. bean B. teammate C. speaker D. overhead
Ex2. Choose the word whose stress is different from that of the rest.
1. A. interest B. performance C. civilian Đ. society
2. A. connect B. travel C. deny D. return
3. A. writer B. teacher C. builder D. career
4. A. equip B. police C. offer D. escape
5. A. amaze B. signal C. even D. village