My father forced me to work as a public servant, which means that I had to give up my dream of studying abroad.
I prefer studying abroad, which is why I had a quarrel with my father.
PS:定语从句修饰名词可以改为分词短语修饰名词。(分词短语修饰名词可以被看作是定语从句的缩略模式---连接词被省略掉了,动词只剩下分词形态,一定没有be动词)
young adults shopping online=young adults who shop online
individuals studying abroad=individuals who study abroad
money spent on different products=money which was spent on different products
animals used for experiment=animals which were used for experiment