短文改错（共10小题；每小题1分，满分10分）
此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，如无错误，在刻行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列清况改正；该行多一个词：把多余的k^s5*u词用斜线（）划掉，在该行在边横线上写出该词，并也用斜线划掉。
该行缺一词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
该行错一个词：在错的词下面划一横线，在该行右边横线上写出改正后的词
注意：原行没能错的不要改
Dear Ron,
I am very exciting to hear that you are coming to              66._________
our school soon. Now let me to introduce our school            67. _________
to you. Our school is a famous school with long history.         68. _________
We have many experienced teacher and excellent equipment.     69. _________
There are two teach buildings, one is for seniors and the         70. _________
other is for juniors. There are two lab building and              71. _________
a library. Except Chinese, maths, English, physics and           72. _________
chemistry, we have some electives (选修课). The               73. _________
students can choose that they like to attend. We                74. _________
love our school. I am looking forward to meet you soon.         75. _________
Yours,
Li Hua