the phantom of the opera

1.Who is Christine Daae's friend?
2.Theatre___________had once been a grand theatre with many famous plays being shown but with the series of murder cases,it was deserted and in1919,it was sold in a public__________.
3.The theatre was believed to be visited by a ghost.The former owner of the theatre gave________francs a month to the ghost in order to please him.
thx....