lead [liːd] 带领；领导；引导
led [led] lead的过去分词和过去式
leader [ˈliːdər] 领导者;领袖;首领
kept [kept] keep的过去分词和过去式
He is ready to lead this nation.
Jack led the way down the rock.
You lead the way and I'll follow you.
Dogs must be kept on a lead in the park.
You must keep your dog on a lead in the park.
If you can't control your dog, put it on a lead.