Срочно помогите пожалуйста!!!

10.3 - 
2.Wasnt, was
3.Was, were
4.Were, was, wasnt
5.Were
6.Werent, were

10.4 -
2.Was your exam difficult
3.Where were Sue and Chris last week
4.How much did your new camera cost
5.Why were you angry yesterday
6.Was the weather nice last week