Ответ:

  1. I am writing in connection with the advertisement which appeared on 12 April.
  2. I originally studied chemistry at university. I graduated with a first-class degree.
  3. I have now completed a postgraduate degree in administration.
  4. I've been trying to find a permanent job for a considerable time.
  5. Indeed, I have already been working for several companies on a temporary basis.
  6. In my first job, I was responsible for marketing.
  7. I have been applying for several posts this year but I have not managed to find what I'm looking for.
  8. The last job I applied for required applicants to speak some Japanese.
  9. I started learning Spanish a few months ago I have not obtained a qualification in it yet.
  10. I have not applied for a job with your company before.
  11. I hoped that you would consider my application favourably.
  12. However, I have been waiting for a reply for weeks and I still have not received any answer.