As the road to the airport is under reconstruction we’d better early to avoid the traffi

问题补充：

As the road to the airport is under reconstruction, we’d better early to avoid the traffic jam,

A, pay off B. set off C. put off D. take off

答案：

解析：句意：因为到机场的路正在重建，我们最好早点出发，避开交通拥挤。pay off付清；set off出发；put off推迟；take off起飞，选B。