如果还有问题,可以问我,主句从句各是什么whom在for后面用宾格主体部分是Mr Green donated his possessions to the poor in his fifties。中间是个插入的部分，,for whom life had once been very hard。意思是对于他来说生活曾如此苦难正常句式是 life had once been very hard for him