C. Matty was about 17 years old when she died. ( 第一段)
B. A sports star. ( 第一段 the famous baseball player Christy Matty Mathewson)
A. Sure
D. Most kids know exactly what they are good at. (Most kids and adults are.........................what they want.)
B. We should try new things. (We change with time. That's why......................and new sports)
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