it 作形式宾语是不是只能替代that引导的宾语从句

it 作形式宾语是不是只能替代that引导的宾语从句 形式宾语是不是只能在介词后面用?是不是介词后面一定要用形式宾语,而没有介词时一般不用形式宾语?比如 see to it that = see that能不能说成 see it that? 为什么是It seemed that 不是It is seemed that?为什么it作形式宾语只能说I found it hard to do sth.而不能说I found it is hard to do sth.? 形式宾语是不是只能充当名词从句? 形式宾语和一般宾语从句的区别例句：I thought it ____ for me to work out the problem.A.difficult B is difficult为什么只能选A?是不是it 后加了that就可以选择B? it作形式宾语的例句 That you couldn't come is a pity.用it作形式宾语 改为宾语从句 用it作形式宾语I took that for granted.They woule promise what they had promised. it作形式宾语的宾语从句常见动词有 英语造句:①it作形式宾语+that宾从 ②where定从英语造句:①it作形式宾语+that宾从 ②where定从 ③v-ing作状语 急求 高中英语 不要课本上的 关于it作形式宾语I would prefer____if you didn't smoke in front of the children答案是it如何理解他作形式宾语?如果把if去掉 可不可以填that变成宾语从句? 如果宾语从句后还有宾语补足语,则用it作形式宾语,而将宾语从句后置We thought it strange that Xiao Wang did not come yesterday.这段话里宾语补足语是哪个 it作形式宾语的句子有哪些? it 可作形式宾语吗?如果可以,请举例说明. 请问find feel等词后有宾补时,用it作形式宾语, appreciate的为什么要带it作形式宾语 it作形式宾语 I think it wrong that he told a lie to everyone.为什么it后面不能加be动词? I think it necessary that we take plenty of hot water every day .是用it作形式宾语的宾语从句那么I think it necessary to do sth,加不定式这种形式可以吗?