Final answer:
Being a good friend is crucial, and one can demonstrate this through listening, supporting, assisting in schoolwork, and encouraging engagement in activities.
Step-by-step explanation:
Being a good friend is an important aspect of personal relationships. One time, I was a good friend to my classmate, Sarah, when she was going through a tough time. I listened to her without judging and offered my support. I also helped her with her schoolwork and encouraged her to join after-school activities to distract herself and make new friends.
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