lead的过去式是什么？

lead 

vt. 领导；致使；引导；指挥

vi. 领导；导致；用水砣测深

lead的过去式和过去分词都是led。

例句：

The president and vice president led the mourners.

总统和副总统带领着送葬人群。

She confessed to the killing and led police to his remains.

她承认杀了人，并且带警察找到了他的遗骸。

In 1920, the United States led the world in iron and steel manufacturing.

美国的钢铁制造业在1920年领先于世界。