语法填空，阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式.

    My cousin Sandy is an English girl. （she） last name is White. She is 12.The girl is tidy. In her room, her books and tape player （be） in the bookcase. Her schoolbag is on the desk. Her pencil box （be） on the desk, too. Some（pen） and a set of keys are in the pencil box. A baseball is under the desk,  it's not Sandy's. It's her brother （Sam）. Sandy has （有） a computer. It's on the table. Next to （紧挨着） computer is a photo. Two girls are it. Do you know who the two （girl） are? Well, （she） are Sandy's good friends, Mary and Anna.