[解析]
86.They lived in America.根据"there was a family called Franklin."可知这家人是住在美国的.
87.He was born on a January day in 1760.根据"On a January day in 1760.The boy's mother and father gave the boy a name﹣Benjamin.故答案为:He was born on a January day in 1760.
88.He could read when he was five.根据"He could read when he was five"可知他是在5岁时就会读书.
89.No.细节理解题,可知他是不擅长数学的.故答案为:No.
90.There were twelve children in the family.根据"There were five girls and six boys in the family,another baby boy was born,随后在1760年又出生一个男孩.故答案为:There were twelve children in the family.