1. Address: Write the address of the recipient in the first line, and then add a colon after it to indicate that there is something to say below.

2. Greeting: Write it on the next line of the salutation, leaving two spaces. It can exist independently as a part.

3. Text: Generally divided into three parts: connectives, main texts and general words. Each part should start with a new line, leaving two spaces for writing.

5. Signature and date: After writing the letter, write the name of the sender in the lower right corner of the letter, which is called signature. Generally speaking, you should add appropriate titles before signing, such as "classmate", "friend", "brother" and "sister". The date of sending the letter can be written after the name, or an additional line can be added.

Precautions:

Letters to elders. If it is a close relative, only write the title, not the name, such as "father", "mother", "brother" and "sister-in-law"; If they are relatives, write the title of the relationship, such as "menstruation" and "menstruation". For elders who are not close relatives, first names or surnames can be added before addressing, such as "Aunt Zhao" and "Uncle Huang".