此题要求改正所给短文的错误。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；在该行右边横线上写出该词，并也用斜线划掉；该行缺一个词：在缺词处加一个漏字符号（∧）；在该行右边横线上写出该加的词；该行错一个词，在错的词下划一个横线；在该行右边横线上写出改正后的词。注意：原行没有错的不要改。
An old man went to the hospital for something was trouble 76．________
with his lungs. Come to see him, the doctor said, “Well, 77．________
Mr John, you are going to have an injections（注射）, 78．________
and then you’ll probably feel very better. ”In the evening, 79．________
a young nurse came to Mr John’s bed and said gently 80．________
