Помогите выбрать правильное слово…

Помогите выбрать правильное слово, по смыслу) ever since he can remember, Nick has wanted to become a vet. I've always loved animals. When I was aboutsix I had to take my cat, Hector,to a vet for a check up and I think I made my (1) career\job decision then Getting a place on veterinary science course is very competitive. It's very important to find what's (2) required\ available in advance and to choose the right subjects. Chemistry and biology will help you to get into veterinary school, where you can do (3) qualification\qualities that will (4) let\allow you to work widely. Nick is working with a (5) vet\IT Consultant at the moment and is planning to get some work (6) achievement\experience on a farm. It will help him to develop necessary (7) qualities\conditions and get key (8) opportunities\skills that are important for the future (9) employment\school.