1) birsday -> birthday, jell -> tell, whot -> what

2) If I want to organize a birthday party at a dacha, I need to invite my friends first. I think four or five friends would fit best, because, when there are too many friends, it is hard to keep the dacha safe, and when there are too few friends, it is too little fun. Then I need to buy food for a party: meat, bread, coke and other delicious meals. When we arrive to the dacha, we should make a fire where the meat will be fried. When cooking is done, we can eat, speak to each other and have a lot of fun!