FitrianaChandraIf it's not wrong, I'd think it goes like this :
"People said that the first two son WERE very clever" or "People said that the first two son ARE very clever" ________________________________________________ "Then he BUILT a hut at the edge of his pasture" or "Then he DECIDED TO BUILD a hut at the edge of his pasture" *The underlined words are just a guess
"People said that the first two son WERE very clever"
or
"People said that the first two son ARE very clever"
________________________________________________
"Then he BUILT a hut at the edge of his pasture"
or
"Then he DECIDED TO BUILD a hut at the edge of his pasture"
*The underlined words are just a guess