单句改错（满分10分）
下列每个句子中均有一处错误，找出并按下列情况改正：
此句多一个词：把多余的词用斜线（\）划掉，在该行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（∧ ）,在该行右边横线上写出该加的词。
此句错一个词：在错词下划一横线，在该行右边横线上写出改正后的词。
小题1:  I think this necessary to study English well.           
小题2:I am accustomed to get up early in the morning.                  
小题3: Hardly had I sat down than the film began. 
小题4:  Three years are a short time in a person’s life                   
小题5: Finding informations in today’s world is easy.      
小题6: The students didn’t obeyed the rules.                   
小题7: This earthquake was happened last afternoon.             
小题8:  We all know that Taiwan belongs china.                  
小题9:  I think it’s wrong for you to stare at others.                     
小题10:  Once publishing, the book will become a best seller.             ___________