What are the two "most American" holidays ? Fill in the gaps with the correct prepositions™.

What are the two 'most American’ holidays? Fill in the gaps the correct prepositions.Americans have a big party on Independence Day. 

Some towns and cities have parades with music bands and flags _on__ the Fourth of July. 

The atmosphere of the family party, with hot dogs and hamburgers _in_ the afternoon and the fireworks _at_ night makes the Fourth of July a national birthday party. 

Thanksgiving Day is _on_ the fourth Thursday _in_ November. 

People started to celebrate it _in_ 1621. _On_ Thanksgiving all people in the family gather in the house of their parents and eat a large traditional dinner.