一、开头常用语
1．I know you have trouble in making friends after reading your letter.I am writing to give you some suggestions/offer you some advice.
在读了你的信后，我知道你在交友方面有困难。我写这封信的目的是给你一些建议/忠告。
2．I'm very glad to receive your letter asking for my advice on how to learn Chinese.Here are a few suggestions.
很高兴收到你的来信，信上询问我关于如何学习汉语。下面是我的一些建议。
3．I'm delighted to hear that you'll be a senior student.Now, I'd like to share my study tips with you.
听说你将要成为一名高年级学生了，我很高兴。现在，我想和你分享我的学习秘诀。
