Really want to know if can help me please anwer me, thanks!

u can go to a website
http://forum.hkfa.net/

there is an interview room, many people share their interview experience and news there and u can find the lastest recuitment as well

just tell u Korean airline just had recuitment this year, and seems it is finished, u need to wait for the next time

KA is hiring FA recently, u can check with their website to see if it is finished or not

CX is opened for recuitment almost all the year, just register in CX website

for singapore airline, they will hire people but not very often, 一年都未必得一次, and u need to wear their uniform in the interview, if u cannot wear it(not fit), u will fail the interview, and u need to wear swimming suit as well, just let u know they will focus on your appearance and the body figure, some crews become fatter after working for sometime, and the company asked her to keep fit first, she didn't have any flights until she become fit.......

by the way, Korean Air and Singapore Airlines seems do not have a great benefit, why u want to join these company??

p.s before u post any questions in hkfa forum, please read the instruction first, otherwise boardmates will ask u to search before u ask