WE ………. FOR THREE HOURS AND ARE VERY TIRED.A. ARE WALKING B. WERE WA...

Lớp 11 Tiếng Anh Đề thi Olympic môn tiếng Anh lớp 11 năm 2017-2018 - THPT Đông Thụy Anh - Mã đề 132

Câu 20: We ………. for three hours and are very tired.A. are walking B. were walking C. had been walking D. have been walking