EXERCISE 5.

Câu hỏi

CÂU 3. She _______ in that company for ten years before she resigned.

A. had worked

B. had been working

C. was working

D. worked

Đáp án
B. had been working

Câu hỏi thuộc Bài tập:

FRIENDS GLOBAL 12 - UNIT 5 - VOCABULARY AND GRAMMAR