message

我给他发了一条短信，告诉他我会迟到。

I sent him a ___message saying I would be late.

我忘了回复她的微信消息。

I forgot to reply to her ___messages on WeChat.

我收到了一条新消息。

I got a new ___message.

请给我留言。

Please leave me a ___message.