20. An old man is _______ a _________ under a big tree.

（三）Mr. Black

Mr. Black teaches (教授) us English this term（學期）. He is a tall man. He likes wearing a white shirt and black trousers. He speaks English very well. We like his lessons（功課）very much.

His home is near the school. Sometimes Mr. Black walks to his home. He has two little sons. They look the same. They often wear the same clothes（衣服）. He loves to see them and play with them. Mr. Black calls(稱呼) the two boys Da Mao and Xiao Mao.

Tick or cross

( ) 21. Mr. Black is our English teacher.

( ) 22. Mr. Black is very short.

( ) 23. We don’t like his lessons.

( ) 24. Maybe Da Mao and Xiao Mao are twin brothers.

( ) 25. Mr. Black can speak Chinese well.