I like this music.Who's it wirtten ____?A.in B.by C.on

问题描述:

I like this music.Who's it wirtten ____?A.in B.by C.on

I like this music.Who's it wirtten ____?A.in B.by C.on
选B
还原成原来的语序,就是【the music is written by who】
所以用by