她在18岁时学会了驾驶飞机。

She learned to ___fly at the age of 18.

Louise，你现在是唯一能驾驶这艘宇宙飞船的人。

Louise, you are the only one who can ___fly this spaceship now.

他想有一天能驾驶直升机。

He wants to ___fly a helicopter someday.