71. 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词作斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词； 2. 只允许修改10处，多者（从第11处起）不计分。
One day , little Tony went to a shopping center with his parent. It was very crowded. Tony saw a toy on a shop window. He liked it so very much that he quickly walked into the shop. After looks at the toy for some time, he turned around and found where his parents were missing. Tony was scared and begun to cry. A woman saw him drying and telling him to wait outside a shop. Five minutes later, Tony saw parents. Mom said,“How nice to see you again! Dad and I were terrible worried. ” Tony promised her that this would never happen again.
parent改为parents；on改为in；very去掉；looks改为looking，where改为that 或者去掉 where，begun改为began，telling改为told，a改为the，saw后加his，terrible改为terribly
1.看下文可知，是父母两个，所以用parents。2. 介词in表示“在···里面”，on表示“在···上”。根据句意可知应该用in。3. 这里是“如此喜欢以至于”的意思，应该是：like so much that...。4. after之后跟从句或v-ing形式，故looks改为looking。5. found后面的宾语从句是陈述句，故where改为that或者去掉where。6. and前后的谓语动词时态要一致，即and后面的谓语动词要与was的时态保持一致，故begun改为began。7. and前后的谓语动词时态要一致，see和tell是并列谓语，故telling改为told。8. a表示泛指，the表示特指，这里指的是上文提到过的那个商店，因此为特指。9. 由上下文可知，他看到的是他的父母，故 saw后加his。10. 应用副词修饰形容词worried。
由下文重复出现的“his parents”可知，他和父母（两人）去购物中心，故要将parent改为parents，Tony走进商店，说明玩具在橱窗里面，用in，。
没有区分单复数的用法，介词误用，副词误用，非谓语掌握不牢，没有掌握名词性从句的用法。