语法填空。
     阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。                                                             
      A farmer and his son were taking their ass(驴) to a market. They wanted to sell it. They passed a
group of girls,    1   laughed at how foolish the farmer was to have an ass and    2  (walk), so the farmer
put his son    3  the ass.
     Further down the road, they passed some old people who scolded the farmer for allowing his young
son to ride    4  said that he should be riding himself .
Further along the road, they passed some travelers who said that if he wanted to sell the ass the two of
them should carry him    5  the ass would be exhausted and worthless. So the farmer and his son bound
the ass"s legs to a pole and carried him.
     When they approached the town, people there laughed at the sight of them. The noise was so loud 
  6   the ass was frightened to    7 (die). He kicked out and 23 (fall) off a bridge into the river and
drowned.
     The    9  (embarrass) farmer and son went home with nothing, except the lesson that you will achieve
nothing by trying to please    10  .