翻译一句话(中译英)

Why did you not reply to the mail last time I made? Are You busy?

Why don't you reply to my last E-mail,are you also be preocuppied with work?
本人保证 翻译质量

Why didn't you give me a reply regarding last email? Were you busy too?

你为什么不回复我上次发的邮件？你也很忙吗？

Why don't you reply my last mail?
Are you busy too?