He began working for that company three years ago.

23/28

He worked for that company since three years.

He has worked for that company since three years.

He has been working for that company for three years.

He was working for that company for three years now.

Giải thích

Đáp án đúng là: C

Hiện tài hoàn thành/hoàn thành tiếp diễn: for + khoảng thời gian: trong bao lâu

Dịch: Anh ấy làm việc cho công ty đó được 3 năm rồi.