中文翻译英文~~就2句话 谢谢 谁能帮我 快

上面的好像都是机器翻译的。
We sent you the Order 879 last time, but still no response (from you).response用confirmation都可以。
Please confirm us(或者用let us know) on that. Thanks

我搞外贸的,经常写这些email，这样翻译比较礼貌，而且简单。

Last time on May 8th our company had mailed the books as your order NO 879, but we haven't received your feedback untill now. If you have received the books, please inform us as soon as possible, thanks.

Last time,our company posted the ordering book No. 879 on May 8th, but by now we still haven't received any reply from you company.So if you have received the book, please inform us of it. Thanks.

Last May 8, I mailed the company has ordered 879 of the book, but until now has not received your company's letter. So if your company be the case, please notify my company, thank you.

Last May 8, I mailed the company has ordered 879 of the book, but until now has not received your company's letter. So if your company be the \