短文改错（共10小题；每小题1．5分，满分15分）
此题要求改正所给短文中的错误。对标有题号的每一行做出判断；如无错误，在该行右边横线上画一个勾（ √ ）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线（\ ）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏词符号（ ∧ ），在该行右边横线上写出该加的词。
As summer vacation are coming soon, my classmates are 76. _____
trying very hardly to get train tickets to go home. But 77._____
I have made up my minds to spend the vacation far from 78._____
home for first time in my life. My parents have agreed 79._____
to visiting me, and I will have a different vacation. When 80.____
they came here, I will show them around my university 81. _____
and the city just as well. I have decided to buy them 82. ____
some nice gifts. It will be a big surprising for them. My 83._____
parents have done a lot for me, and I think it is high time 84._____
that I did anything special to express my thanks. 85._____