I already help you to te first one
mi casa del sueño es una mansion con tres pisos el primero sera el living room con una cosina, el segundo pizo sera unos cuartos de invitados, el tercer pizo sera cuartos mi cuarto sera uno gaming los otros las personas que vivan con migo deciden.
"ese libro" is "that book"
"este libro" is "this book"
"aquel libro" is also "that book"
"este libro" is the correct answer because it is stating that the book is near the person talking about that book.
Answer:
That would be him, its or her.
Explanation:
I know because i take Spanish class