Hospital Authority interview questions

I applied this job through recruitment day. there were 1 hr plus 3 hospital representatives. First part was introduced myself in Chinese. then one representatives asked me 3 questions. 1. why did you leave your present co 2. which hospital do you prefer 3. which area (ward /office) do you prefer after answering the questions, hr informed me to leave. the other 2 representatives were silent during the whole process. they did not introduce about the job nature, and ask me some situations questions to me.

The process includes a written test and a panel interview for around 15 to 20 minutes. The questions are normal and not difficult to answer at all. They contacted for discussing the offer after 1 month.