my favourite picture

Look! It's a photo of my class. There are some students cleaning the classroom. Li Yan is mopping the floor. Wei Hua is cleaning the blackboard. Mary and Liu Mei are wiping the windows carefully. Wang Ping is carrying the water with a basin. Lisa is cleaning the desks and chairs. They are working hard. I think they are maybe a little tired, but they are very happy.

题目什么，
有要求吗

YOUR favourite pictures

your favourite picture?