I have to write a letter to my dad to convince him I want to do skating it is urgent my work is due in 20 minutes

Before even sitting down and asking for your own board, mention your friends who skateboard to your parents. Tell them how your friends really enjoy it and how you think it seems really fun. With enough subtle hints, your parents might offer to buy you a skateboard without you even asking.

obama was told in early july 2004 that he was chosen to deliver the address, and he largely wrote the speech himself, with later edits from the kerry presidential campaign.

its a hard situation i cant really answer because the essay is for you to write.