Question

By the time of last year, she ______ the piano for five years.

A．learnt

B．has learnt

C．had learnt

D．will learn

Answer 1

C

试题分析：句意：到去年为止，她已经学习钢琴五年了。结合语境可知本描述的是一直持续到去年的动作，故用过去完成时态，选C。