[ Your school and his school would change places for 3 weeks. Your class would go to his, in Italy, and his would go to yours, in Greece, but since it was Friday now that you arrived, the teachers would let you get to know eachother on Saturday and then they would leave on Sunday. ]

[ He had fluffy short brown hair and he was really tall and kinda popular and knew a lot of people and had many friends. ]

He and his class are showing your class around, they're speaking in English.