假设你是李华，看到你们社区招募暑假照顾老人的广告．你对此工作表示感兴趣，希望得到机会去照顾老人．请结合下面的要点，给社区负责人写一封求职信．
写作要点：
1．你对这份工作的认识；
2．你有什么优势；
3．你的计划．
注意：
1．词数100左右；
2．不要逐条翻译，可适当增加细节，以使行文连贯；
3．信的开头和结尾已给出，但不计入总词数．
Dear Sir，
I have read the advertisement on the neighborhood board and

I hope to get the opportunity to serve the old in my summer vacation．（高分句型一）
Many old people are now living alone and they desire care from others physically and emotionally，especially when the summer is coming．（高分句型二）Therefore，it is important for them to realize that they aren't ignored and there is someone who cares for them．
In order to help them spend the hot days，I apply for the job because I am now 18 years old and have a strong sense of responsibility for others．（高分句型三）I will go to visit them every day，chatting with them and doing some chores for them．Besides，because I have learned how to play the guitar，I will sing songs with them and play the guitar for them．

I hope to get the opportunity to serve the old in my summer vacation．（高分句型一）
Many old people are now living alone and they desire care from others physically and emotionally，especially when the summer is coming．（高分句型二）Therefore，it is important for them to realize that they aren't ignored and there is someone who cares for them．
In order to help them spend the hot days，I apply for the job because I am now 18 years old and have a strong sense of responsibility for others．（高分句型三）I will go to visit them every day，chatting with them and doing some chores for them．Besides，because I have learned how to play the guitar，I will sing songs with them and play the guitar for them．

I'm looking forward to your reply in time．
Yours sincerely，
Li Hua．