It is good for me to do exercise的 逻辑主语是哪个

I think it is good for me.I think it necessary to…… it后什么时候有is It is good for me to do exercise的 逻辑主语是哪个 Whether it is good for me to miss a person or not翻译成中文是什么 it is good for me to hear from you 求求你们那 is good () for me it is attractive to me 和it's good for me为什么前而介词用to,后一句用for,有什么区别? I think it's good for me还是I think it's good to me 为什么? He is good to me He is strict with It's bad for me to with for介词有什么不同啊 it's+adj.+for sb.to do sth.若for改为to用法!it is adj.to sb.to do sth.是一定存在的,eg:it is helpful to us.it is good to me.it is adj for sb.to do sth.出现更多：it was too hard for me to carry them.请问在什么时候用to,for,这个 问几道英语选择和句型转换题1.My anut is ( )me,sheoften cooks tasty food for me.She thinks it is( )my health.A.good for,good for B.good for,bad for C.bad to,good for D.good to,good for2.It's difficult ( )(solve)the prabiem by themselves.3. now it is time for me to go to sleep .see you tomorrow good night 这是什麼意思~ good luck to me!go for it!是什麽意思? The difference between Is it good for me to do sth and is it good of me to do sthWhat is better to say or both ok to say with the same meaning? The difference between Is it good for me to do sth and is it good of me to do sthWhat is better to say or the meanings R different but both ok to use? It is good for Tom to do it? It's good for me it is good for you to drink more water and less coffee(she told me )改为间接 it is an important day to me还是for me