综合填空
Jack was a pupil.One day his teacher g　　each of them a seed（种子） and ask them to plant it.So Jack went to his g　　and wanted to dig a hole f　　the seed.He dug and dug.After a while he f　　a coin.He was very g　　and put it in his pocket.A minute l　　，he found another coin,he put it in his pocket again.The same thing happened several t　.Jack was so happy that he thought he should c　　how many coins he had got.He put his h　　in his pocket.To his s　　,he found a hole in his pocket.