问题补充:
Her life a lot in the last few years.
A. changed
B. is changing
C. has changed
D. have changed
答案:
A. changed
B. is changing
(答案→)C. has changed
D. have changed
解析:句意;在过去几年中她的生活发生了很大的变化。结合语境可知本句描述的是现在已经完成的动作,故用现在完成时态。主语her life表示抽象含义,不可数,故助动词用单数,选C。