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

解析試題分析：句意：到去年結(jié)束之前，她已經(jīng)學(xué)習(xí)鋼琴五年了。過去完成時(shí)態(tài)是指動(dòng)作發(fā)生在過去的過去。by the time of …過去完成時(shí)態(tài)的標(biāo)志詞，結(jié)構(gòu)：had done ,故選C。
考點(diǎn)：考查過去完成時(shí)態(tài)。