Read the text and fill in the gaps with the correct grammatical forms, choosing them from the four suggested options.

Му father is a doctor. Не helps people become healthy and strong. He likes his job and he enjoys saving ... lives. When he was a small boy, he wanted to become a pilot. He wanted to visit foreign countries and make new friends. But when my father grew ... , he understood that choosing a future career is a serious problem. So, when he ... school, he faced that problem. And finally, he decided to become a doctor. His parents supported his choice because they ... the profession of a pilot was dangerous. As for ... , I think my father has made the right decision.