阅读短文，判断句子正误。

Mr Green is a Chinese teacher. He is kind and funny.

It was Friday afternoon. Some students were playing football on the playground. Mr. Green just finished his class and walked to the playground. It was autumn. All the trees turned yellow. Their leaves flew with the wind, just like a beautiful picture. Mr. Green found a leaf dropping near the goal. It was yellow and red. He thought it was very beautiful and wanted to pick it up. Suddenly, a football flew to Mr. Green and hit his head.

"Oh, no!" the students ran to Mr. Green quickly. "Mr. Green, are you OK? I'm so sorry!" "Don't worry! T have a strong head. "Mr. Green answered, "See? I am the best goalkeeper!"