Li Na returned to Wuhan after the Games, ______, as is known to us, she had been brought up and trained to be a gold medalist of tennis.

此题要求改正所给短文中的错误。短文中有10处错误，每句最多有两处。错误设计一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

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。

  When my father bought a computer as birthday gift for me in last year, I

felt very excited. As is known to us all, computers are getting more and more

usefully now. Much information can be stored in it. We can also learn that

has happened lately in the world on the Internet. In the past, people had to do

lots of work that were very dangerous. But now computers can do it, instead. When an exam is coming, I often did some exercises in my computer. Then it will correct them and tell me the right answer. In this way it is very convenient for me to get ready for the exam than before.

你校英文报社在“世界无烟日 (World No-Smoking Day)”前夕征集关于吸烟危害健康的英语文章，请你为其投稿。内容至少包括以下要点：
1．吸烟会危害自身及他人的健康；
2．世界卫生组织 (The WHO) 声称每年至少两百万人死于与吸烟有关的疾病；
3．呼吁：吸烟者戒烟；公共场所禁烟；青少年远离香烟……
首句已给出，可适当发挥。词数：120左右。
As is known to us all, smoking does harm to not only smokers themselves but also people around them.                                                                                    
 
                                                                      

此题要求改正所给短文中的错误。短文中有10处错误，每句最多有两处。错误设计一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。

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。

  When my father bought a computer as birthday gift for me in last year, I

felt very excited. As is known to us all, computers are getting more and more

usefully now. Much information can be stored in it. We can also learn that

has happened lately in the world on the Internet. In the past, people had to do

lots of work that were very dangerous. But now computers can do it, instead. When an exam is coming, I often did some exercises in my computer. Then it will correct them and tell me the right answer. In this way it is very convenient for me to get ready for the exam than before.

 As is known to us, knowledge is     can change your life.

A. that      B. what          C. which      D. how