it在定语从句中能做形式主语吗?It is not good luck but hard work -----has m

it在定语从句中能做形式主语吗?It is not good luck but hard work -----has m It is not hard to do one good deed,but it is hard to do good It is 开头如何判断定语从句或名词性从句形式主语 It' s hard work and we need to work very quickly,but I'm not it is necessary to not only work hard but also have real int It is not a good idea for children to have to work hard．Chil It is not a good idea for children to have to work hard. Chi it is not a good idea for children to work too hard.Children It is not a good idea for children to have to work hard.Chil it is not a good book (),but it has some interesting picture it在定语从句中可以做形式宾语或形式主语?还是只能在名词性从句中做形式宾语或形式主语? it在定语从句中可以做形式宾语或形式主语？还是只能在名词性从句中做形式宾语或形式主语？