Question

— 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

Answer 1

C  

解析试题分析：句意：你认为这位小姐怎样？她很勤奋。她生病前把她所有的精力都投入到她的工作中。根据时间状语从句before she got ill.可知主句该用过去完成时态，所以选C。
考点：考查动词时态。