— What do you think of the young lady? — She is hard-working. She all her effort into h

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：你认为那个年轻的女士怎么样？她很勤奋。她把所有的精力都放在了工作上直到病倒。she got ill为一般过去时，在这之前的动作应为“过去的过去”，即用过去完成时；故选C。