①优化资源配置，确保经济效益提高        ②实现碎片化供给与多样化需求匹配

③降低生产成本，全面推进产业结构升级    ④提高资源利用率，改变居民生活方式

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。

Dear Sir,

    How are you? As a exchange student, I am writing to tell you I prefer to move into a single room in next term, as I find it inconvenient to share a room with others. My roommate often held parties at night, made much noise. Besides, his friends are always visiting him, that disturbs me a lot. So I hope to draw your attentions to this problem. If you think in my position, I am sure he will agree that the only solution for me is get a room of my own, one not in the same building and as near to the school campus as possible. I would be gratefully if you could do me the favor.

                                                                                                                                                                                                  Li Hua