1．
请填出所给字母左右两边的邻居。
1. _____________ F _____________
2. _____________ I _____________
3. _____________ T _____________
4. _____________ N _____________
5. _____________ E _____________
6. _____________ M _____________
7. _____________ Q _____________
8. _____________ P _____________
9. _____________ C _____________
10. _____________ R _____________