English composition.

I met an unpleasant thing this afternoon. I lost my schoolbag. Classes begin at half past two in the afternoon. In class, I am full of enthusiasm and concentrate on listening to the teacher. After school, I heard someone calling Zhang Hua behind me, my name. It's my friend. He asked me to play basketball with them. We played until ten minutes to six. We had a good time on the playground. Unfortunately, on my way home, I found that I had left my bag on the playground. I had to look back, but the bag hasn't arrived yet. Who took it?

I met an unpleasant thing this afternoon. I lost my schoolbag. Classes begin at half past two in the afternoon. I am in high spirits. In class, I concentrate on listening to the teacher. After school, I heard someone calling my name Zhang Hua behind me. It turned out to be my friend. He invited me to play basketball with them. We played until ten minutes to six and had a good time. Unfortunately, on my way home, I found that I had left my schoolbag on the playground. I have to look back, but the schoolbag is not there. Who took it?