对了 英语怎么说

问题描述:

对了 英语怎么说
就是那种,比如:
“对了,你那天说要的书我给你拿来了”
"哦对了、我都忘了这回事了.."
“对了、你几号走来着?”
--- 这里的“对了”,用英语怎么说?
有人告诉我是 by the way, 但是我觉得 by the way 好像没有忽然想起来的感觉吧?
多谢多谢^^

well,I take the book here what you asked that day.
well,I almost forgot the thing.
well,when will you leave?