He is playing a piece of piano music.We all like listening to it.合并为一个定语从句
问题描述：
He is playing a piece of piano music.We all like listening to it.
合并为一个定语从句
答
He is playing a piece of piano music that we all like listening to.
答
上面错了 that后面跟定语从句要加宾语的
He is playing a piece of piano music that we all like listening to it.
或者 which跟定语从句就不要加宾语
He is playing a piece of piano music which we all like listening to.
答
有两种不同思路的解答
He is playing a piece of piano music which(that) we all like listening to .
We all like listening to the piece of piano music which(that) he is playing .
答
He is playing a piece of piano music which we all like listening to.
重点在于listen 后面的to不能省, 先行词which是to的宾语.