短文改错(共10小题；每小题1分，满分10分)
请对每一行作出判断，如无错误，在该行右边横线上划一个√，如有错误，按照改错的方法改，请将答案写在答题卡上。
Once an old man saw a bag on his way to home. 76.
In the bag there was a wolf. It was catching and put in 77.
the bag by a shepherd（牧羊人） a few minutes ago.
The wolf asked the old man to let him out. 78.
The old man took pity on him and opened bag. 79.
When the wolf got out， said to the old man， I am very hungry. 80.
I want to eat you. The other old man could do nothing 81.
and cry for help. Just then the shepherd came and saw this. 82.
He beat the wolf to death by a stick. Then he said to the 83.
old man， wolves want to eat men all the time. It's nature 84.
will never change. We should took this as a good lesson. 85. 76 删去to.
网友回答
(答案→)76 删去to.
解析：76. home是副词，前面不能接介词。
77. 主语it与catch的关系为被动关系,故用was caught.
78. 此行无错。
79. 在此重复提到，为特指。
8 0. 此句缺少主语,并且要与上文him保持一致。
81. 接上下文没有另一个老人.
82. can do nothing but意为只得做，为习惯搭配。
83. 用……工具常用with…….
84. 此处应为它的本性.
85. 情态动词后应接动词原形。