Read the text and answer the questions. The following text is for No. 1 and 2.
 

    Yesterday at my school, we had an International Day. We had performances, food stalls, displays, raffle ticket draw, and some of us were dressed in costumes.We started our day off with performances but the one I liked best was the one from fourth grade. We played games. The performance I was in was Labamba. Straight after our performances, we had our lunch. There were food stalls. They came from Australia, Asia, Arab, and Greece. Everyone had a job. These people were from sixth grade. I did my job after I had lunch. My job was to sell International Day Books. We had displays in the hall. These displays were good but I did not get to see them. The displays came from many countries. There were also a Trash and Treasure stall where they sold toys. The school got these things by asking the children to bring them in. Although I did not win anything, International Day was still fun.

What is the main idea of the paragraph?