i suggest you to find some types on the internet that are made by singaporeans so that you can get used to the singlish in a short time and you can understand the interviewers better.[em05]
I am sm2.You can either speak in english or chinese.the point is that whether you can understand what the interviewers are saying since they are using singlish.In my case,i had to ask parden for many times and most of the time i will answer in chinese.[em08]