Complete the sentences with first, unluckily, then, fortunately and after that. A group of foreign students visited our school yesterday. It was our class's task to guide them in the school. 0) First, we showed them the school and visited different classes. 1) ★★★ we had lunch together in the canteen. 3) ★★★ we attended a PE lesson and played volleyball together. 4) ★★★, one of our classmates hurt his leg. The doctor examined his leg and said everything was Ok. 5) ★★★, he could walk and was with us till the end of the day. It was a fun day.​