Tthis is dog dog's name . spot is good dog. dog's place is in corner room. my sister is very young. her name sveta. is four. she is not schoolgirl. нужно вставить подходящие артикли где нужно

This is a dog. The dog's name is Spot. Spot is a good dog. The dog's place is in a corner of the room. My sister is very young. Her name is Sveta. Sveta is four years old. She is not a schoolgirl