Here are a couple more:
2) Antonio descansa en el cuarto.
3) (I'll assume barbacoa is some kind of food.) Julio prepara una barbacoa en la cocina.
5) El señor Tobar lee el periódico en el patio.
6) I'm not completely sure, disco compacts is a CD, so it could probably be either in her room (el cuarto) or the living room (la sala)
A lot of these have two correct answers, if you really can't decide just write them both and tell your teacher they're technically both correct, hope this helped.