2000 câu trắc nghiệm tổng hợp Tiếng Anh 2025 có đáp án (Phần 39)

Ian ________ at the factory long when he was made a manager.

306/500

Ian ________ at the factory long when he was made a manager.

A hadn’t been working

B wasn’t working

C didn’t work

D wasn’t worked

Giải thích

Đáp án: A