102 câu trắc nghiệm Thì quá khứ tiếp diễn (Past Continuous) có đáp án

At the time, I _______ for a large software company in California.

70/102

At the time, I _______ for a large software company in California.

worked

was working

have been working

Giải thích

Chọn đáp án: B