The answerr is feos , los perros no son bonitos son feos
1-eran
2-fue
3-fue
4-estaba
5-jugaba
6-empezó
2. Tengo cincuenta u ochenta euros.
3. No tengo nada que hacer
4. Tengo ganas de viajar
5. Tengo sueño
The correct answer would be "el libro mío" or you can also say "mi libro" which mean that that book belongs to you.
"el libro mi" --> mi is not place in the correct place so as I said before it would be place before the noun.
"mi el libro" again the position of "mi" s incorrect and "mio libro" has no sense bacause of the meaning of words. "this book is mine" "el libro es mio"
In English bajo means the word low