New lab puppy not house broken, advice?

i'm watching my sister's new puppy (he's a black lab) he's cute and playful buh has a bitting problem, HE BITES EVERYTHING from cords to blankets to even mi when i'm walking! i work tomorrow for 6hours and have to leave him alone, this will be his first time by himself i kno he will cry... i donno wut to do! should i keep him outside where the heat might get to him and having him rips apart my moms garden (which would be hilarious, buh she would be so pissed) plus he'll be cryin the whole time... or inside in one room, hoping to god he doesn't tear up anythin?New lab puppy not house broken, advice?
Hi i would put him in your bathroom get a baby gate and put papers down, food, water, toys, blanket or bed etc. in there and make sure he has some chew toys. Take everything out of the bathroom that he could chew. And remember to take off the toilet paper and holder too or he will shred that and that is such a mess, been there, done that. He will not cry all day, but be sure he has some toys to chew on and maybe some chew bones. Good Luck.New lab puppy not house broken, advice?
If he doesn't have a crate, keep him inside, in a small, easily-cleaned, puppy-proofed room. It would be best if someone can come and take him outside to go potty every couple of hours.
Probably the one room thing, we did that with our puppy for the beginning. Hide as much as possible (make it a room like laundry or bathroom with tiles and no furniture), provide some chewy toys. Good luck.