Here are the words from each set with differing pronunciations:

1. **A. hi** - differs because the "h" is pronounced /haɪ/, while the others have different vowel sounds.
2. **B. my** - differs because it has a long "i" sound, compared to the others.
3. **C. five** - differs due to the long "i" sound /aɪ/, while the others have different vowel sounds.
4. **D. up** - differs because it has the short "u" sound /ʌ/.
5. **C. well** - the vowel sound differs from the others.
6. **C. man** - differs due to the short "a" sound /æ/.
7. **A. help** - differs in the vowel sound compared to the others.
8. **C. turn** - has a different vowel sound compared to the others.
9. **C. television** - differs due to the different vowel sound in the second syllable /ə/.
10. **D. old** - differs because of the vowel sound /oʊ/ compared to the others.

You can circle those words for your exercise based on the differing pronunciations.