WHILE I...ALONG THE ROAD, I SAW A FRIEND OF MINE. A. CYCLED B. HAD...

15. - DE THI THU TN CHO HS MIEN NUI
Tiếng Anh DE THI THU TN CHO HS MIEN NUI
15. While I...along the road, I saw a friend of mine. A. cycled B. had cycled C. was cycling D. have cycled