内容正文:
Once upon a time, a father and his son were walking from one town to another, While they were trav
elling, they happened to pass by a river. They were 61 and stopped there to rest. Then the father asked h
is son to get him some water from the river.The son walked to the riverside and he saw some 62 washin
g clothes there. Right at that moment, a bullock cart(牛 车)started crossing the river. As a result, the
water became very dirty."I mustn't
Therefore, people were seriously ill because there was the poison in the leaves.
Therefore, people were seriously ill _______ _________ there was the poison in the leaves.