题目

A rich man was riding along the road and saw an old man digging in his garden. There was a young tree lying on the ground. The rich man asked 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! “ shouted 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 14、   -----Are you happy with your new computer?    ----- No, it is _______ me a lot of trouble.    A. showing       B. leaving        C. giving         D. sparing