阅读下面短文，请从A、B、C、D四个选项中选出可以填入空白处的最佳选项。

Sam is a thirteen-year-old boy. He is a new1of No. 2 Middle School. He is2Mr Chen's class. Look! Those are3good friends, Frank and Amy.

Frank is4years old too. Blue is his favourite5. His bag and desk are blue. He is tall and friendly. His grandfather is a farmer on a6. Frank is very happy to see his grandfather. That nice girl is Amy. She is from England,7now she is in China. Her parents work in Shanghai. There is a computer on her desk and she can8Email to her English friends on it. She likes spring best because the weather is9and comfortable

It's 4 o'clock in the afternoon.10are they now? They are on the playground. How happy they are!