英语求助信万能句子

1)如果是写给机构，需要自我介绍

I am Li Hua， a boy of 16 from XX school.

I am Li Hua， a boy of 16 currently studying in XX school.

(2)如果写给亲友或师长，需要寒暄问候

How is it going?

How are things going?

How are you doing these days?

How have you been feeling/doing?

(3)说明写信目的

I am writing to you for some help.

I wonder how to deal with the problem.中文：我想知道如何处理这个问题。

2、I am writing this letter to ask you to do me a favor.中文：我写这封信是想请你帮个忙。

3、Now I wonder whether I could ask you a favor.中文：现在我想知道能否请你帮个忙。