请帮我看下这短间接引语有没错where si the father?two brothers were looking

请帮我看下这短间接引语有没错
where si the father?
two brothers were looking at some beautiful paintings
the elder brother told the younger brother to look and said that these paintings were very nice.
the younger one agreed but said that there was only the mother and the children in all these paintings and asked where the father was.
the older one thought for a moment and then explained that the father was the one who was painting the pictures obviously.
并说明为什么要这样转.语法什么的说明一下.
Where is the father?
Two brothers were looking at some beautiful paintings.
"Look," said the elder brother."How nice these paintings are!"
"Yes," said the younger,"but in all these paintings there is only the mother and the children.Where is the father?"
The elder brother thought for a moment and then explained,"Obviously he was painting the pictures."
这是原文