Ⅰ.完形填空
体裁：夹叙夹议 话题：付出与回报 词数：288 时间：17′
If you have ever been discouraged because of failure，please read on.For often，achieving what you set out to do is not the__1__ thing.Let me give you an explanation.
Two brothers decided to dig a__2__hole behind their house.As they were working，a couple of older boys stopped by to__3__．
“What are you doing？” asked one of the visitors.
