THEY...TV WHEN I CAME.A. ARE WATCHING B. WATCHED C. WAS WATCHING D....

5. - TONG HOP KIEN THUC TIENG ANH THCS VA CAC BAI KIEM TRA THU
TONG HOP KIEN THUC TIENG ANH THCS VA CAC BAI KIEM TRA THU
5. They...TV when I came.A. are watching B. watched C. was watching D. were watching