我好想做空中服務員

For your English, I would suggest you to take the IELTS exam which not only airlines would look at... But any comparies will look at your IELTS result if you have one... So it would be an advantage if you would take the exam so even if you cannot become crew, it will still help when you apply for other jobs...
The IELTS will test you in four area which are listening, reading, speading and writing... Further details you can find from http://www.ielts.org/default.aspx or British Council Hong Kong http://www.britishcouncil.org/hongkong-exams-ielts-aboutielts.htm

Cathay Pacific
english was A/B
IVE 100%冇機會
補考=0機會
body...
your hand must 2.08m...

Try to improve your languages like English (Reading, Speaking & Writing) Most important.