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：在缺词处加一个漏字符号（∧）,在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，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。
When our six children were young，suppertime is always             76.          
being interrupted by neighborhood children ring the bell.            77.          
They wanted one child or another to come out and played.             78.          
Finally we had∧ good idea. We hung a sign on the front                79.          
door that was read：“We’re having dinner. Come back                80.          
later.” That night，we sat down to what they thought would          81.          
be a pleasant，uninterrupted meals. But as soon as we                82.          
began dinner，the doorbell rang. On the front door stood a           83.          
five-year-old boy from across the street. He looked up               84.          
at us and said，“I just want to know what the sign say.”           85.