导游带领游客们穿过拥挤的市场。

The guide ___piloted the tourists through the crowded market.

他首次驾驶飞机时非常紧张。

He was very nervous when he first ___piloted an airplane.

学校在小范围内试行了新的教学方法。

The school ___piloted the new teaching method in a small group before expanding it.