She only felt relaxed after a few months working f...

Câu hỏi: She only felt relaxed after a few months working for him.        

A She used to feel relaxed working for him a few months.

B A few months ago, she didn’t find it relaxed working for him.

C Only after a few months working for him did she feel relaxed.

D It was not until a few months working for him did she feel relaxed.