此题要求改正所给单句中的错误。对标有题号的每一句做出判断：如有错误（每句只有一个错误），则按下列情况改正：
此句多一个词：把多余的词用斜线（＼）划掉，在该句右边横线上写出该词，并也用斜线划掉。
此句缺一个词：在缺词处加一个漏字符号（  ），在该句右边的横线上写出该加的词。
此句错一个词：在错的词下划一横线，在该句右边横线上写出改正后的词。
Everyone of us is working hard in the factory.           
I have caught a bad cold for a week and I can’t get rid of it.    
This is the steel plant where we visited last week.             
Following the road and you will find the store.           
This is all what Dr. Smith said at the meeting.                
He promised to come and see us after the supper.       
John came here to see you, but he had left five minutes ago.     
My mother is busy preparing for supper.                    
I’ve heard him but I never know him.                     
We got on the school bus and which took us straight to the People’s Park.