短文改错
此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则改正：
注意：原行没有错的不要改。
Once an old man saw a bag on his way to home.                    1. _______
In the bag there was a wolf. It was catching and put in          2. _______
the bag by a shepherd（牧羊人） a few minutes ago.
The wolf asked the old man to let him out.                       3. _______
The old man took pity on him and opened bag.                     4. _______
When the wolf got out， said to the old man， "I am very hungry. 5. _______
I want to eat you." The other old man could do nothing           6. _______
and cry for help. Just then the shepherd came and saw this.      7. _______
He beat the wolf to death by a stick. Then he said to the        8. _______
old man， "wolves want to eat men all the time. It's nature      9. _______
will never change. We should took this as a good lesson."        10. ______