2.Grammar. The usa is a multicultural country. Paul and his friends celebrated International Day at his school. Some pupils were showing folk dances from countries all over the world. (0) What dances /they/perform? what dances were they performing? (1)they /wear/tational costumes? . Some pupils were singing songs. (2) What songs / they/sing (3) What food /the children /eat? (4) anyone /eat/traditional Russian food?