Finding a decent place to live in a slum is not easy

Finding a decent place to live in a slum is not easy.
- It is 
She wants to dye her hair. She will ask her mom to do it for her.(get her mom)
Lily told us the truth. Everyone believes that  (Lily is believed)
There is a sign. It says we can't play cards in here. ( that )
No one can enter this area. The police won't allow it.( forbid )