例句：
When Janice Corp. ____ its marketing division
, it laid off more than 20 percent of its employees.
A. was restructured
B. restructures
C. was restructuring
D. to restructure
我觉得是D 但一个美国人说要选C?
我问他为啥？ 他说他觉得很顺....
请高手帮忙解答 感谢！

过去进行式

thx!

为啥会觉得是D?

你这个空格需要加一个动词，to Br是不定词，不是动词。