An interesting thing

Dinner at night, my mother and I went to Yang Shusong to play, and something interesting happened.

We came to the door of a unit of Yang Shusong, and I pressed the doorbell, and no one answered. I shouted like a big horn and shouted: "Yang - tree - loose!" Interesting things happened: the lights in the corridor lit up from the first floor one by one, and all the way to the fourth floor of Yang Shusong. Go up! Mom said: "My son will watch, your voice will climb the stairs!" I laughed: "The voice helped me find Yang Shusong!"

It’s so interesting. Do you think it is also very interesting?

First Grade of Excellent National Primary School in Ling County, Dezhou, Shandong Province: Du Shixing