I was punched in the face, and three veneers came out. Can they be put back in? (photos)

If they are intact, then yes they can be rebonded.  Go to a dentist and have him/her evaluate if the are in one piece

thank god, veneers are not broken, r in one piece. you need to re-cement as soon as possible. u have to pay for re-cementation.

Go see a Cosmetic Dentist soon-  The costs will be less than if you wait! When you go in, ask how much it will cost to have them re-cemented at least for the time being.  A good dentist will know how to put you back together and evaluate them.  Good luck-Get a Essix Bite Protector and wear it to keep them from breaking, especially if your are boxing-:)