помогите пожалуйста нужно дать совет этой девочке, заранее спасибо!

My father and I are ... business together.
a)at
b)in
c)of

задание:look at the life map in exercise 1 again and complete the sentences. use the Third Conditional.
1. If Hardeep family had stayed in london she___(had) lots of friends.
2. She probably___(go) to university if she had stayed in London.
3. She would not have become a difficult teenager if she__(not feel) lonely.
4. If Hardeep had not had an amazing teacher she__(become) interested in Art.
5. If she had not become interested in Art she probably__(work) in the family business.
6. She probably would have got bored if she__(work) for the family business.
7. If she had caught the right train she___(arrive) for her college interview.
8. She would not have become a top comedian if she__(not start) talking to the woman on the train.
Заранее, спасибо!