Find a mistake and correct 
1 My sister in law used to had long hair but now she has short hair
2 Did your father work in a tobacco factory before he retired?
3 Why you didn't come to the meeting last week?
4 My best friend and I use to hated each other when we first met
5 Was Anna be successful with her project last week?
6 Yesterday morning I readed several chapters of the book '' The little prince''
7 Last summer we involved in  community service in our neighborhood , so we did go on holiday.