读句子,根据《The little horse crosses the river》故事内容对下列句子进行排序。
A. Mother horse asks him to try it by himself.
B. At last, the little horse finds the river is just right for him.
C. The little horse comes to a river. He does not know if he can cross it.
D. One day, mother horse asks the little horse to carry the wheat to the mill.
E. He asks Uncle Cow and the little squirrel, but they give him different answers.
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