Cloze 1
体裁：夹叙夹议 话题：励志人生 时间：16分钟
There is a story about an elm tree.It was planted in the first half of the 20th century on a farm.It grew to be a __1__ tree.
The family that owned the farm kept a bull __2__ to the elm.The bull paced around the tree，dragging a heavy iron chain with it，which __3__ a trench in the bark about three feet off ground.The trench __4__ over the years，though for whatever reason，which did not kill the tree.
After some years，the family sold the __5__ and took their bull.They cut the chain，leaving the loop around the tree and one link hanging down.Over the years，the __6__ slowly
