题目

Van is Jim’s new friend at school. Van comes from a country far away. He doesn’t talk like the other children in school. But he can do numbers and draw. The teacher asks Jim to show Van around and help him.     Van sits with Jim and his friends at lunch. Jim shows Van how to play kickball. Jim points to something and says the word. Van tries to say the word.     Van is learning many new words. He wants to learn how to read. Van is happy that Jim helps him and is his friend. Jim likes Van, too, because Van tries so hard. (   ) 1. In the picture, Van is ________. A. reading化简二次根式：（1）；（2）（m＜0）。