Once my mom told me a story. Ten years ago she and my dad were newly married (结婚). (Sudden), one day, she got a phone call from an elderly lady. The lady wanted to speak to someone named Donna. My mom (explain) with great care that she was not Donna, but the lady would still say my mom was Donna.
At least once a week, the old lady would continue to call for Donna—sometimes more! Every call started , "Hello, Donna! How are you?" She never cared it was the wrong number. She talked about her daily life, her cat, her garden, and the newspaper. From her stories, my mom guessed that Donna was a childhood friend of the lady. She could only spend 10 or 15 minutes on the phone before getting (tire) and ending the communication with goodbye.
The whole thing lasted for about a year. Then the calls just stopped. Why didn't she call? Did (something) unexpected happen? At first my mom felt worried and had trouble (fall) asleep. Now she still thinks of that lady sometimes and wonders happened to her. Perhaps that woman knew there was no Donna and was just lonely at that time. She had nobody else (talk) to.
So my mom's small act of (kind) might make a difference to someone in need.
