Put "did, was or were" into the brackets: 1. Where .....you born? Where .....your mother born? 2. When.....you start school?

Put "did, was or were" into the brackets:
1.where .....you born? where .....your mother born?
2.when .....you start school?
3.how many school ......you go to?
4.what .....your favourite subject?
5.where .....you live when you......a child?
6......they live in a house or a flat?
7.I...at home to help my parents.