1.There were many pretty girls, but she was the most beautiful*.
2.It is difficult choice to have to make a decision on this problem*.
3.It is so dangerous* for girls walking alone in the street at night.
4.My little sister wants to be a princess*.

We have a _beautiful_ house with lots of rooms.
I've got a _problem_.
You know how _dangerous_ they are!
She acts like she is a _princess_.