In my country, people celebrate the new year has each different way in different places because my country is very big, the amount of people is enormous and there are many different race and diversity cultures.
--In my country, people celebrate the new year in many different ways due to the enormous population and variety of diverse cultures.
However, we have a common activity to celebrate the new year that is having a family reunion dinner, watching the Spring Festival Gala, and playing the firecrackers.
--However, common activities to celebrate the new year which we all share are having a family-reunion dinner, watching the Spring Festival Gala, and setting off firecrackers.