Please Help!!!! Very Important!! Urgent!!

Can あなた create power points on the computer and project them somehow? If so, pop ポップコーン and invite your parents to the presentation.

Look up information on the dog breed(s) that あなた have in mind of getting and make slides surrounding breed information, how much it would cost to feed them each month, housing options, adoption from an animal shelter vs. breeder contrast chart, etc.

Politely ask if all 質問 can be held until the presentation is over and let them have their say in the debate. Don't interrupt. Also, don't be discouraged if they still need a little もっと見る time to think about it または not. Hopefully, this will 表示する your parents how serious this subject is to you.

Also, it never hurts to use cute 子犬 pics in the slides. There might be a chance that it would バター them up a little.

Good luck. :)

Maybe asking if あなた can volunteering at a animal shelter would help.
Even if they won't let あなた have one あなた will still be able to spend time around イヌ and maybe if your parents take あなた they will fall in 愛 with one.
But other then that, I don't know.

あなた just need to tell them strait up あなた want a dog and then tell them that あなた should go look in the kennel to 表示する them that あなた really care about getting.