He won't come to the party.I know it.合并句子
问题描述：
He won't come to the party.I know it.合并句子
答
I know it that he won't come to the party.我知道他是不会来参加聚会的.
由that引导的宾语从句.合并后应该去掉it吧sorry把it复制来了。把它删了就是that引导的宾语从句。如果保留it 可理解为that 引导的同位语从句。