( )the eng of last year,we had learned eleven English songs.

问题描述:

( )the eng of last year,we had learned eleven English songs.
填空

By
by the end of last year是截止到去年年底的意思.
这句话的意思是:截止到去年年底,我们已经学会了11英语歌.
逗号后面用的过去完成时,所以要用by.