题目内容：

    One day, Mr. Li was reading a book in his office after school. To his surprise, a ball flew in suddenly and hurt him on the head. He took the ball to the window, but he only saw a group of boy students running away quickly and disappearing in a minute. He sat down again and continued his reading. As it got dark, it was time for him to leave for home. Looking at the ball, he wondered what to do with it. He knew the owner of the ball must be nearby and wished to get it back. He went downstairs and walked to the playground. It was at the center of the playground that he placed the ball with a piece of paper, on which he wrote “Be careful next time!". Then he walked away.

The next morning, as Mr. Li opened the office door, he found the same piece of paper on the floor. Some words were added after his words: “Thank you for your kindness. Anyway, you are a clever fellow.”

1.What happened while Mr. Li was reading in his office?

A.The window was broken by a ball. B.A ball hurt him on the head.

C.A ball hit the window. D.The door was broken by a ball.

2.How did Mr.Li deal with the ball?

A.He took it home. B.He put it in his office.

C.He put it back on the playground. D.He had no idea about it.

3.According to the passage, we can know that__________.

A.Mr.Li is interested in reading B.Mr.Li is too hard on his students

C.Mr Li is good at playing sports D.Mr.Li is a lever teacher with kindness