3. The Qing Dynasty ceded Hong Kong to Britain after The first and second Opium Wars
4. United States of America
5. Helping South Africans and Chinese people of Hong Kong learn to speak English which will help in the tourism and advertising business, it also helped bring roads, railways and better education to both countries.
It would be easier to get a sense of feelings from a podcast rather than an article because you can hear people's voices, which will help you understand their emotions a bit better.