Mr. Wilson was a meat cutter. One night, while he (work) in the freezer (冷藏室), he got locked in by accident. It was after working (hour), so there was no one left to save him.
Mr. Wilson knew he would freeze to death by the next morning. (Sudden)，someone opened the door. Mr. Wilson was (surprise), shocked and most of all, thankful… There, standing in front of him, was the security guard(保安).
Mr. Wilson didn't expect (see) him here. Then he asked the security guard, "How did you know I was here?"
"It's very simple," he answered. "For ten years, you are only person who comes in every day and says hello and goodbye to me a kind smile. Today I heard the hello, but I never heard the goodbye, I knew you had to be here."
Every day, it may be (you) smile, a thank you, or a kind word that makes a change in someone's life. And if it (come) back to you, that world will be nice.
