此题要求改正所给的短文中的错误，对标有题号的每一行作出判断，如无错误，在该行右边的横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：

该行多一个词：把多余的词用斜线（\）划掉，在该行右边的横线上写出该词，并且也用斜线划掉。

该行缺一个词：在缺词处加一个漏字符号（/\），在该行右边的横线上写出该加的词。

该行错一个词：在错的词下画一横线，在该行右边的横线上写出改正后的词。

    My parents and I went to the park on last Sunday                     76.______________

There were lots of visitors stood in front of the ticket                      77. ______________

window. We waited a long time and buy three tickets                       78. ______________

On the Tiger Mountain of the park, I was too eager                         79. ______________

to see the fierce frightened animals that I quickened                         80. ______________

my steps through the crowd. Unfortunately, I got                            81. ______________

separated from my parents. I had hard time looking                         82. ______________

for him, but I had no luck. Wandering in the park, I felt                    83. ______________

alone without any companions. Worse still, I had no money,             84. ______________

so I had to walk home, covered as much as 5 kilometers.     85. ____________