3. They unwilling to learn both traditional and simplified characters because they think they are useless for daily life./ They are not willing to learn traditional as well as simplified Chinese as they don't think it's useful.
4. (i) prominence
6. The manufacturing boom of the 1970s was funded mostly by Cantonese speakers, but the boom is over, so Cantonese is less important in China.
7. (i) local/Guangdong culture
(ii) the products of Hong Kong's entertainment industry
8. Because the government was going to make two TV stations switch from broadcasting in Cantonese to Mandarin.
9. Because it made them feel more international.
10. People now see Shenzhen as just as international as Hong Kong, but more more innovative and aggressive in its development.