根据短文内容和所给汉语提示，写出短文空白处各单词的正确形式,每空限填一词。
   My friend Nancy is ____(15) years old. She is a clever girl in my class. She comes from  ____ (日本).But she likes China very much. Now she ____  (居住) in Shanghai with her parents. Her house is not in the  ____(中心)of the city but she enjoys it. There ____( 有 )a river through her neighborhood.____ (在对面) from her building is an old park.____ （如果) she is tired, she can ____(散步 ) in it to relax herself. She says she wants to be a ____ (女警察) though sometimes it is kind of ____ (危险的)

下列对宽容的理解正确的是    (　 　)

将二次函数y=x²﹣4x+5化为y=（x﹣h）²+k的形式，那么h+k=____ 

用量角器画角的一般方法是这样的：