How to write a composition for class

The weather was sunny on Wednesday, and the students were all smiles, because in the afternoon we had our music class of "Everyone loves everyone, flowers bloom".

Time flies, and we finally have the music class we were looking forward to. Before the music teacher came, the students were chattering and talking to each other, discussing trivial matters. The girls were talking about market intelligence, "I heard that a new kind of pen has been launched recently", "Well, really, I want to buy it, how much does it cost?"... Some naughty boys were jumping around on their seats and making " The crackling sound did not take the monitor who was in charge of discipline into consideration at all. Just when everyone was busy with their own things, the music teacher walked in and saw the classroom in a mess. His face was red with anger. My eyes almost popped out of my head when I heard the music teacher shouting sternly: "Whoever talks again will be stopped from class!" Suddenly, the class was silent. The students were all shocked by the music teacher's words. I don’t dare to make trouble again. "Okay, let's start singing."... When the students reached the climax of singing, a few "naughty kings" who were worthy of the name made trouble and played rock-paper-scissors. The music teacher was so angry again that he ran away I went over to educate them. The naughty guys lowered their heads in shame and touched the back of their heads.

Their appearance caused the whole class to burst into laughter again. The music teacher also turned from anger to joy and began to lead the singing again...

The students sang every song with the most beautiful voices. The music teacher watched Looking at us, smiling happily! The beautiful singing resounded throughout the classroom and surrounded the entire campus, and from time to time our bursts of cheerful laughter came...