If you use a computer at work, take a five-minute break every ______ to exercise. A. half an hour B. hour C. two hours D. three hoursĐoạn văn6/41If you use a computer at work, take a five-minute break every ______ to exercise.half an hourhourtwo hoursthree hoursGiải thíchGiáo viên hướng dẫn trả lời