Here are the words with different pronunciations from the others in each group:

1. **A. same** (pronounced /seɪm/) - others typically have a short vowel sound.
2. **B. pencil** (pronounced /ˈpɛnsl/) - others have a long vowel sound.
3. **C. place** (pronounced /pleɪs/) - others typically have a short vowel sound or different phonetic structure.
4. **D. police** (pronounced /pəˈliːs/) - others have a short vowel sound or different pronunciation.
5. **D. clean** (pronounced /kliːn/) - others have a different vowel or consonant stress.
6. **C. decide** (pronounced /dɪˈsaɪd/) - has a different vowel sound compared to others.
7. **C. plates** (pronounced with a long vowel sound) - others vary between short and different sounds.

Let me know if you need any more help!