This is official website to Australia government which you can obtain ETA visa to travel to Australia. Fees may be required. https://www.eta.homeaffairs.gov.au/ETAS3/etas?locale=en&tab=&submit=apply
If it is a US green card and a Chinese passport, how to apply for Australian tourism
I can not obtain a health exam form for my mother from your website yet you received her application and you show that you need health exam !!!
Do i need a visa to go to australia
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