1.agree
A hard to find a job
B when economy depression/company bankrupt,people need to change job
C earn more salary and experience
2.agree
A high salary attracts good talent teacher
B high salary gives teacher more recognition
C teacher need high salary to develop themselves
3.agree
A necessary to communication
B more features than TV,especially when comes cellphone
4.own country's are more interesting
A easy to understand culture,backgroud and norms
B language issues.Foreign language may hard to understand