1. Matt is late because there was an accident in town and he had to give a statement to the police.
2. He couldnt get a message to Adam because his mobile was switched off.
3. Sarah is late because she didnt realise the rehearsal started so early.
4. She didnt chek the rehearsal time because she is an understudy and she didnt think that it was so important for her to be there in time.
5. Adam gets annoyed with Sarah because she doesnt take it seriously. She id understudying the main part and she should be more responsable and get there on time.