Answer:
2) The museum director said the exhibition is open today.
3) Carol said she can't see the screen very well.
4) She asked me when the play starts.
5) He asked us if he could have some tea.
6) She said they have to wear a suit.
Explanation: For this situation, just put whoever said the quote and to who if applicable first. Then, put the quote and make sure it makes sense. My best tip for that would be to read it out loud first.