sending ____with mobile phones is more and more popular among young people.填message,加复数吗

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 22:02:42

要用复数.因为message是可数名词.

当然要了

message可数名词，要用复数。

message是可数名词，当然应该用复数，is是对应“sending...”这件事的，跟message无关

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