阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
A young man, while traveling through a desert, came across a spring of clear water.    ___water was sweet. He filled his leather container so that he could bring some back to an elder  __  had been his teacher. After a four-day journey, the young man    ( present ) the water to the old man. His teacher took a deep drink, smiled    ( warm ), and thanked his student very much for the sweet water. The young man went home    a happy heart.
After the student left, the teacher let    student taste the water. He spit it out,     ___(say) it was awful. Apparently, it was no longer fresh because of the old leather container. He asked his teacher, "Sir, the water was awful. Why did you pretend to like   _____ ?" The teacher replied,  " You tasted the water. I tasted the gift. The water was simply the container for an act of kindness and love. Nothing could be __   (sweet). "
We understand this lesson best      we receive gifts of love from children. Whether it is a cheap pipe or a diamond necklace, the proper response is appreciation. We love the idea within the gift rather than the thing.