完形填空A rich man was walking along the road one day.He saw an

完形填空A rich man was walking along the road one day.He saw an old man____ a tree in the garden
He asked

A rich man was once riding along the road and saw an old man digging in his garden.On the ground lay a young tree,ready to be planted.The rich man called out to the old man,“What kind of tree are you planting there,my good man?”
　　“This is a fig(无花果)tree,sir.” He said.
　　“A fig tree?” the rich man was very surprised.“Why,how old are you,may I ask?”
　　“I am ninety years old.”
　　“What!” cried the rich man.“You're ninety years old.You are planting a very young tree now and it'll take years to give fruit.You certainly don't hope to live long enough to get any fruit from this tree.” The old man looked around the garden.Then he said with a smile,“Tell me,sir.Did you eat figs when you were a boy?” “Sure,” the man did not know why he asked this question.“Then tell me this,” he said.“Who planted the fig trees?” “Why-why?I don't know.” “You see,sir.” went on the old man.“Our forefathers(祖先)planted trees for us to enjoy and I am doing the same for the people after me.”
　　The rich man was quiet and said,“You are right,my good man.We should do some things for the people after us.Thank you very much.” Then he rode away.
翻译：
从前,有个富人沿着道路骑马,看到一个老人在他的园子里正在挖坑.旁边有个小树苗,一会儿要种的就是这个树.这个富人便招呼了老人,问道：“我的好朋友,你要种的是什么树?”
“先生,这是一颗无花果树.”他说道.
“无花果树?那我能问一下您多大岁数了吗.”富人非常地惊讶问道.
“我现在90岁了.”
“什么!你都90岁了,你现在种一颗那么幼小的树,它是要经过很多年才能结出果实的.你要知道,你不可能等到能吃上果实的那一天了.”富人大呼道.老人看了看园子周围,笑了笑“先生,那你告诉我,在你是个小男孩的时候,你吃过无花果吗?”“当然吃过.”富人不知道老人为什么这样问.老人说道：“那你告诉我,那时候的无花果树是谁种的?”“呃?我不知道.”
“先生,你看.”老人接着回答道：“我们的祖先种树是为了我们享用,现在呢我同样是为了我以后的人服务.”
富人听后,沉默一会儿说道：“你说的对,我的好朋友.我们应该为我们后来的人做一些事.非常感谢您.”然后,他就骑着马离开了.