Question

求助翻译人士！！！谢谢了

Cleared onto the active runway:
When cleared for takeoff:

Answer 1

Cleared onto the active runway:（主跑道已经清空）
When cleared for takeoff:(跑道已清空，可以起飞）

Answer 2

Cleared onto the active runway：主跑道已被清空（可以进入主跑道了）
When cleared for takeoff：当一切检查完毕，获准起飞时

Answer 3

当飞机准备起飞的时候要清空跑道

Answer 4

Cleared onto the active runway: