Here are the words with different sounds in the underlined parts:

1. **A**: better (the "e" sound) - differs from prefer (the "e" sound is like in "see")
2. **D**: bear (the "ea" sound) - differs from hear, dear, and concern (all have the "ear" sound)
3. **D**: combine (the "i" sound) - differs from concert, concern, collect (all have the "o" sound)
4. **C**: neighbour (the "ou" sound) - differs from picture (the "i" sound)
5. **C**: absent (the "a" sound) - differs from dependent, enjoy, return (the "e" sound)
6. **C**: bird (the "ir" sound) - differs from first, girl, sun (all have the "ur" sound)
7. **C**: hurt (the "u" sound) - differs from burn, sun, surf (all have the "u" sound)
8. **C**: picture (the "i" sound) - differs from burn, sun, nurse (the "u" sound)
9. **C**: hotel (the "o" sound) - differs from hot and hour (the "o" sound)
10. **C**: hobby (the "o" sound) - differs from hot and hour (the "o" sound)

Feel free to ask more questions if needed!