Dear Uncle, I trust you are aware of my ambition to study archaeology and my interest in historical matters, particularly those related to human evolution. Given this, you can imagine my excitement about an upcoming school excursion to an archaeological site in three weeks. I'm eager to see what an archaeological site has to offer. However, this excursion comes with a financial requirement that my parents may not be able to fully cover, so I would be grateful if you could contribute financially in any way. I look forward to your response and thank you in advance. Sincerely, Debora Lin.
Answer:
1. use sign language
2. anything except sound
3. yes
4. it's your decision (personal view)
5. it's your decision (personal view)
Explanation: