visit的過去式是什么單詞

　　I visited with him in San Francisco.

　　我去舊金山看望了他。

　　We visited the ruins of a Norman castle.

　　我們參觀了一座諾曼式城堡的遺跡。

　　During his summer holiday he visited Russia.

　　暑假期間他游覽了俄羅斯。