this is so difficult a question that none of us can answer itit要不_英语解答

this is so difficult a question that none of us can answer it
it要不要加在answer后面?我认为a question是先行词,that引导定从

人气：111 ℃　时间：2019-12-09 05:59:30

解答

这个是so...that句型,that后面是结果状语从句,后面要加it的.句子意思是：这个问题太难了,我们谁都答不出来.如果把that改为as，后面要不要加it呢？that 不能改为as.