They felt tired because the meeting was so long.If...

Câu hỏi: They felt tired because the meeting was so long.If ..................................

A. If the meeting hadn’t been so long, they wouldn’t have felt tired.

B. If the meeting had so long, they would have felt tired.

C. If the meeting was so long, they wouldn’t have felt tired.

D. If the meeting hadn’t been so long, they wouldn’t feel tired.