问题补充:
— What do you think of the young lady?
— She is hard-working. She all her effort into her work before she got ill.
A. has put
B. put
C. had put
D. would put
答案:
A. has put
B. put
(答案→)C. had put
D. would put
解析:句意:你认为这个年轻的女人怎么样?——她工作很努力。在她生病以前,她把所有的经历都投入到了工作当中。结合语境可知本句描述的是一直持续到过去某时的动作,故用过去完成时态,选C。