With frequent changes of homes, care-givers, and schools; the fact that the boys were often absent from school to go to the hospital; and the natural rebelliousness of adolescence, it is not surprising that they had poor grades and behavioral problems.
換房子、換保母、換學校，加上常常請假跑醫院，又逢青春期的躁動叛逆，功課不好，甚至行為出現偏差，都是可以想見的。