children and flying horse Chapter Two Twin ladies

The next day after school, there was a classmate came to the boy and followed him the way home.   The boy felt strange.   The classmate did not talk, just follow his back.   At the end, the boy asks the classmate loudly:

"What you want?”
"Oh, nothing, just want to ask you ...”
"if you want to go to riverside to dabble?"   the classmate look at his face said careful.
"No, I don't.  I can't swim !"
"Oh, that's OK, just for fun !"
"No time! "  then he turned his back.
"But my grandma asked me to play with you"
"I don't even know your grandma ! "   his bicycle has gone.
After he is back to his grand parent' house, he saw the classmate already sitting in the living room
soon after his bicycle is parked.
His grandma said :
"Sky, this is T ,  and this is T's grandma. "
Sky's eyes opened wildly look at the two old ladies.   He was in shock because they almost look the same. 
The only thing different is the wearing, T's grandma wears a pair of  rain boots and working pants and Sky's
grandma were in fabric pants.
"Ha, ha, can you see the difference ?   We are twin sisters"  so grandma has a sister ? " 
"Another day your auntie came to visit us, I just knewn that you are in the same class with T.
What a wonderful coincidence! "
Auntie was riding on a motorcycle wolf 125 with a bunch banana in the back.
"I was just back from the mountain.   I saw T on the way.  So I bring him to see you. "
Auntie walks out to stand at the door to smoke after saying that.
"Is he Yin Yin’s son ? "  grandma knocks her head.
"Nothing in command!  Yin Yin was like a tom boy, why her son looks so pale, and so quiet ?"
"And he cannot swim ! "  T catchs the conversation.
"Can't swim ! no way !  Yin Ying swam very well. "
It is a surprised to Sky, because his mother usually looks very stylish,
he cannot picture she was growing up a wild girl and swim very well.
"what kind of person my mother is ? "  his mind was full of questions
before sleeping.
The next day he asks his grandmother :
"Why my mum sent me here ?  why ? "
"I don't know, either, but somehow we are happy to have you here"
"You got to harry for school, I am going to the farm. "