It was a winter morning，just a few weeks before Christmas．While most people were warming up their cars，Jack，my husband，had to get up early to ride his bike four kilometers away from home to work．When he got to his office，he left his bike outside as he usually does．After 10hours of work，he found his bike was gone．

Jack used the bike to get to work every day，and he works 60hours a week to support his family．

I was so sad that someone would steal our bike that I wrote to the newspaper and told them our story．A short time after that，several people in our city offered to help．A woman named Lucy even bought a bike，then called my husband to pick it up at the front gate of her school．Once again my husband had a wayto get to his job．It is really an honor that a complete stranger（陌生人） would help someone they have never met before．

This experience encouraged us to share more with others．People say that a smile can be passed from one person to another，so do acts of kindness from strangers．No matter how big or how small，an act of kindness shows that someone cares about others，and the results can last forever．

71．Did Jack know Lucy？

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72．How does Jack usually go to work？

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73．Where did Lucy leave the bike？

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74．When did the story happen？

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