the fire was so big that firefighters found hard to get,空格处填it,解释为作形式宾语
问题描述：
the fire was so big that firefighters found hard to get,空格处填it,解释为作形式宾语
我想问一下为什么不能用that,不能把它看作宾语从句吗
答
the fire was so big that firefighters found it hard to getit是形式宾语,真正宾语是to get ...it宾语, hard宾补,to get...是真正宾语.that是不能充当形式宾语的.如果改为宾语从句则应为the fire was so big that ...