Probably its too late!
Apacau, thanks for your quick response.
Maybe its too late now, but I actually wrote to Sinagpore Airlines and as well as Qantas Airways almost a month ago.
Singapore Airlines SA/NT manager replied that they are no longer in a position to take students for work experience.
Someone from Qantas Airways Adelaide ticketing office (North Terrace, Adelaide) sent me an email with a comment: we don't have work experience program this year.
Apacau, what do you think I should do now? I am very worried!!!