What's wrong with my apps and how can I fix them?

I tried to connect my iPhone to my Wi-Fi router but I don't have the router set up correctly and the Wi-Fi just showed up but didn't do anything. When I turned the Wi-Fi off, I went back to my home screen and several of my apps looked like this. How do I fix them?

You must connect to internet to fix this.
bcoz you were halfway through the download or update of those particular apps.
since net suddenly got disconnected it appears to show lik this.

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