Photo-chan, a cat from Grandpa's safari park, has come to visit Ashibe-kun's house! When Goma-chan, Photo-chan, and Hirao are all "talking" to each other, it almost sounds like they're singing! So Sugao-kun starts to sing with them. Meanwhile, at the safari park, everyone is going crazy trying to find Photo-chan!
It's almost like they're all 
singing a song together.
يبدو وكأنّهما يغنّيان أغنية معاً
Es ist, als würden sie
gemeinsam ein Lied singen.
Pareciera que estuvieran cantando.
Parece que estén cantando.
On dirait
qu’ils chantent une chanson !
Sembra quasi che stiano cantando insieme una canzone.
Parece até que estão todos cantando.
Они как будто поют вместе.