Looking at the picture, the essay guest is coming.

One day, Xiao Ming wrote homework at home, and suddenly there was a knock on the door. Xiao Ming went to the door and looked out from the door mirror. It turned out to be Teacher Li, the class teacher of their class. He quickly opened the door. Xiao Ming said: "Hello, Teacher Li, come into the house quickly." Teacher Li said in a harmonious voice: "Thank you!" So, he walked into the house.

After entering the house, Teacher Li sat on the sofa. Xiao Ming gave Li a cup of hot tea and said, "Mr. Li, please drink tea." Teacher Li said: "Thank you, is your mother at home?" Xiao Ming said: "Not at home." Teacher Li said: "Then I am gone. Remember, let your mom call me.” Teacher Li stood up and walked toward the door. Xiao Ming quickly opened the door and said, "Mr. Li, goodbye." Teacher Li walked down the stairs.

Xiao Mingguan went to the door, and after returning to the house, he was happy to write homework.