She Talked & Talked

The teacher stood in front of the class and said, "Girls, I was in the garden yesterday. I saw somebody there.
She sat on a bench and some girls sat on the ground infront of her. She talked and talked and the girls listened  to her. Did you meet her?
Mala: Yes, we met her yesterday.
Bala:  We met her the day before yeatreday too.
Sheela:  And we'll meet her tomorrow too.
Sita:  And She's here today.
Teacher:  Is She in this room?
Rita:  Yes, She's in this room.
Nita: That's right. She's the teacher.

The teacher laughed and laughed, and the girls laughed too. After a short while everybody was quiet. Then the teacher said  "Girls, you forget one thing. One can't talk all the time. A teacher talks a lot in the class,
But she is quiet outside. The Pupils are quit in hte class but they talk and talk and make a lot of noise outside.
So that person could not be a teacher. She was a pupil."