阅读下列短文，选择正确的答案。
Hello, dear friends! I’m Jenny. Please look at this photo. The girl in red is me. I’m 13. I have a sister and two brothers. My sister, Linda, is 15. She likes red and green. She has two red rulers and a green pencil case. She also likes sports and she has a great sports collection. She has five baseballs, three basketballs and two volleyballs. The baseballs and basketballs are under her bed. The volleyballs are under her chair. . And she is in the baseball club.
My brothers are Alan and Tom. Alan is 14 and Tom is 8.Alan likes English very much, and he is in the English club. He has many English books and English tapes. But Tom only likes watching TV. He watches it every evening.
小题1:How old is Jenny? She is .
A．8
B．13
C．14
D．15小题2: __ has many English tapes.
A．Jenny
B．Linda
C．Tom
D．Alan小题3:Linda has volleyballs.
A．one
B．two
C．three
D．five小题4:Tom has .
A．two sisters and a brother
B．a sister and two brothers
C．three brothers
D．three sisters小题5:下面哪项陈述是正确的？
A．Linda’s pencil case is red.
B．Alan is in the baseball club.
C．Tom is the youngest（年纪最小的）of the four children.
D．Tom watches TV every afternoon.
的前n项和为Sn，则
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