Error Correction（10 questions；1 for each，full marks 10）
本题要求改正所给短文中的错误。对标有题号的每一行作出判断：
如此行无错误，在该行右边横线上画一个勾（√）
如有错误（每行只有一个错误），则按下列要求改正：
此行多一词，则把多余的词用斜线（﹨）划掉，在该行右边横线上写出该词，且也用斜线划掉。
此行缺一词，则在缺词处加一个漏字符号（∧），在该行右边横线上写出该词。
此行错一词，则在错词下划一横线，在该行右边横线上写出改正的词。
注意：原行没有错的不要改。
第一节：短文改错
We’ll never forget a day when               76_______
my classmates and I paid a visit a                77_______
chemistry factory. It was a large                78_______
one with nearly 20 000 workers. It  
looks like a garden and we saw col-               79_______
orful flowers grass and trees there.
We also visited some workshop and      80_______
found workers working hard. We
talked to them and learned a lot of                      81_______
We understood them further. On
the way home we felt very tiring,         82_______
but we both thought we had a very               83________
good day. We really hoped what we             84________
could get more chances of leaving   
the school and learn about society.        85________