I often send____(mails to someone by computer and Internet)to my friends on the Internet

问题描述:

I often send____(mails to someone by computer and Internet)to my friends on the Internet
根据提示和句意完成句子

应该填emails
原句翻译:我经常在网上寄电子邮件给我的朋友们.
括号里的注释是要求填:(通过电脑和互联网寄信给某人的东西)