In many ways, Alena Analeigh, 15 years old, is just like you. She ________ singing, watching movies and chatting with her friends. But in ________ one way, Alena is very much unlike other girls. This kind American girl is now studying medicine at a university (大学). Her ________ is to use her knowledge to help people in need.

At her ________ age, Alena showed an interest in STEM. She is always ________ knowledge. When she was in the fifth grade, the girl started to join high school-level classes online after school. She “flew through” many hard books. For ________, learning new skills was like a walk in the park.

________ Alena is not a bookworm. A year and a half ago, she started the “Brown STEM Girls” program (项目). Of all the scientists and engineers (工程师) in America today, only 28% are women. Alena wants to ________ this. Through “Brown STEM Girls”, she is helping many other girls like her to have ________ experiences (经历).

What can you learn from Alena’s story? Must you do what she did? Of course not. But now you know that ________ is just a number. You are not too young to do anything. Just think about what you are able to do as a teenager. Then, put your heart and mind into it.