What job did the man get first? He got the first job as_________________.

I studied economics at a university, and then I was lucky because I got a job very quickly as a salesman in a small company. It wasn’t exactly what I wanted, but you know it was my first job. I stayed there for five years altogether. During the third year I was promoted to sales manager, and I stayed in that job for two more years. But then I really got bored, so I decided to leave and apply for other jobs in the area. But I had no luck getting a second job at all, and I was very short of money, so in the end I had to get a job working as a typist in a factory.
16. What job did the man get first?
17. How long had the man kept the first job?
18. When did the man get promoted in his first job?
19. Why did the man leave his first job?
20. What was the second job the man got?