完成以下短文：Dogs learned to keep w____ over sheep and other animal.Working dogscould do other t____ ,too.Some dogs were not strong,But they could help man h____.Other dogs were best as pets.At f____,there were only a few kinds of dogs.Today,

完成以下短文：Dogs learned to keep w____ over sheep and other animal.Working dogscould do other t____ ,too.Some dogs were not strong,But they could help man h____.Other dogs were best as pets.At f____,there were only a few kinds of dogs.Today, 根据所给首字母提示完成短文所缺单词Dogs have been man's good friends for t____ of years .Many stories told how brave dogs helped people in t____.With the help of dogs,many people l___ in snow found their way home.Dogs have also helped Why do people have dogs as pets?（短文填空） 阅读短文,完成练习. 英语完成短文 英语：完成短文. 初一英语 完成短文 英语 完成短文 英语完成短文 阅读短文,完成填空. 阅读短文完成选择 阅读短文完成五道题, 阅读短文,完成句子 阅读短文完成表格 阅读短文,完成表格 根据提示完成短文 完成短文填空 求教英语完成短文