请先阅读下面短文，掌握其大意，然后从方框中选择最佳单词，并用其适当形式填空。每个词限用一次。每空一分。                         

       Nancy is from the USA but she   ____  in Shanghai now. She is 12 years old. She ____ to Shanghai with her parents because they ____ here. Her father ____ English in her school and her mother is a doctor.

      Nancy and I are ____ .We study in No.21 Middle School in Shanghai. Nancy likes____ school very much. She is nice to others(其他人). She often helps us ____ our English and we often help her learn Chinese. Nancy loves ____ very much. Every Sunday she has a swimming class with twelve students. She is ____ at swimming and she is in the school swimming ____ .