✔ 最佳答案
The best gift I feel would be a good quality pen.. every elderly person would love that!
I would not prefer to give books, CDs or liquor because they depend on personal choices and may not be liked.
Else, you may also give some unusual gifts.. like say, an hour glass or a magnifying glass or a crystal showpiece.. Something that will make them remember you (since the gifts are unique)
Lastly, attach a "Thank you" Card with your gift.