3. People hold the festival in Twinsburg on the one weekend every August.  
   Correction: People hold the festival in Twinsburg on one weekend every August.

4. We usually prepares a feast for family and friends.  
   Correction: We usually prepare a feast for family and friends.

5. Cornbread are one of the traditional dishes.  
   Correction: Cornbread is one of the traditional dishes.

6. Chung Cake is the traditional food associating with the Tet holiday.  
   Correction: Chung Cake is the traditional food associated with the Tet holiday.

7. There wasn't an fireworks display on New Year's Eve last year.  
   Correction: There wasn't a fireworks display on New Year's Eve last year.

8. One of the symbol of Easter is the Easter Bunny.  
   Correction: One of the symbols of Easter is the Easter Bunny.

9. Does he interested in joining the festival?  
   Correction: Is he interested in joining the festival?

10. Family members and friends usually gathers to have a feast.  
    Correction: Family members and friends usually gather to have a feast.