Choose the word that has the underlined part pronounced differently from the others

Exercise 2: Choose the word that has the underlined part pronounced differently
from the others.
1. A. born B. robber C. corpse D. horn
2. A. stop B. dog C. portable D. bother
3. A. lord B. north C. pork D. bottle
4. A. shot B. portrait C. lock D. shock
5. A. chopstick B. ball C fault D. sort
6. A. knock B. top C. frog D. audience
7. A. small B. launch C. comma D. awful
8. A. daughter B. pot C. cot D. block
9. A. board B. drawn C. laundry D. mock
10. A. body B. coarse C. box D. stock