An old experienced worker worked for a house building company（公司）for so long that it's time for him to rest． He（1） 　　to live a relaxing life with his family after leaving the company． So he told his boss about his plan．

The boss felt（2） 　　that his good worker was leaving his company． He asked the worker（3） 　　he could help the company build just one more house． The worker agreed， but his heart was not in his work any（4） 　　．He didn't spend enough time to choosing good materials． He wasn't willing to spend too much time and energy（5） 　　the last house．

After the worker finished his job， the boss came to check the house． Then he gave the front door（6） 　　to the worker and said，"This is your house﹣﹣ my gift to you for working for the company so well．"

The worker was（7） 　　! If he had only known he was building his（8） 　　house， he would have built it carefully．

 Sometimes we are（9） 　　the worker． We do some things carelessly． We may think the things have（10） 　　to do with us． But with a shock we realize that the things belong to us． If we could know that， we would do them carefully． Regretfully， we can't let the time go back． Life is always full of the unexpected， we should try our best to do everything well．