Emir-says chiva If you mean HOW TO AUTO IMPORT POSTS FROM OTHER BLOGS TO YOURS

Note It is really not advisable to copy other blogs so as to be free from Plagiarism and other related offences pertaining to Blog..
Uniqueness and Originality is very important in Blogging..
But for your request, check below..
HOW TO IMPORT POSTS USING PLUGIN
Login to your Wp Dashboard
Then Select Plugins > Add New >
and search for RSS Post Importer. Or
Download the plugin Here and upload to you Plugin directory then Activate.
Then follow the settings in your dashboard..
Easy to use and Working well..
For better experience, you have to be running your blog on a Premium host
Main Work Of RSS Importer Plugin
RSS Post Importer is the Most Powerful & Easy to use WordPress RSS Aggregator plugin and does exactly what its name suggests: Import Full RSS Post
futhermore, it imports posts from other blogs using RSS Feed.
Meaning Of RSS
RSS (Rich Site Summary) is a format for delivering regular changes in web content.

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