Question 15. When the old man returned, the young volunteers__________ in his house.
A. were cleaning B. was cleaning C. clean D. cleaned
22. Đề thi thử bám sát cấu trúc đề minh họa TN THPT 2024 - Môn Tiếng Anh - Đề 22 - File word có lời giải
Question 15. When the old man returned, the young volunteers in his house.