短文改错（共10小题，每小题1分，满分10分）

假如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。每处错误仅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：把多余的词用斜线（\）划掉。

修改：在错的词下面划一横线，并在该词下面写出改正后的词。

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。

My parents decided to make a trip to Beijing. When they told me their decisions, I was so delighted. But my mother became worried with her flower, for nobody would take care of it. Seeing the worrying expression on her face, suddenly I remembered that an article in a magazine I had read earlier. It’s suggested in the article that people used a piece of cloth to take care of their plants when you are away. On the day we set off, I found a piece of cloth and put one end of them into the basin, which is full of water, and the other end into the flower pot. Three days later, while we came back from Beijing, flower was still alive.

管沟回填土时应排除沟内积水，清除沟内杂物，先填实管底，再同时回填管道两侧，然后回填到管顶以上（）处。

A．0.3～0.4m

B．0.3～0.5m

C．0.2～0.5m

D．0.3～0.7m