Seven Rabbits

The teacher asked John,“ John, if I give you two rabbits(兔子) and then two more rabbits and then two more rabbits, how many（多少） would you have?”

John said, “Seven”.

“Ok John,” the teacher said. “ Let’s try it another way. If I gave you two apples, plus two more apples, plus two more apples. How many apples would you have?”

“Six.” John said.

“Ok”, said the teacher. “Now if I gave you two rabbits, then two more rabbits, then two more rabbits. How many would you have?”

“Seven, Teacher,” John said.

“Why seven?” the teacher asked angrily（生气地）.

John said, “ Because I already have one rabbit at home（在家里）!”