Question

【题目】 the end of last term we had learned five English songs.
A.At
B.By
C.In
D.To

Answer 1

【答案】B
【解析】by the end of 意为“到……末为止”，可跟过去完成时连用，故选B。句意是：到上个学期末为止我们已经学习了五首英语歌曲了。