Only in this way　　　　 to make improvements in the operating system.

A.you can hope　　　　　　　　　　　B.you did hope

C.can you hope　　　　　　　　　　　D.did you hope

Only in this way　　　 to make improvement in the operating system.?

A.　you can hope　　　　　　　　　 B.　you did hope?

C.　can you hope　　　　　　　　　 D.　did you hope?

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。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（^），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。
I often dream of become a teacher. I dream of standing on the platform in the classroom and give lessons to lovely boy and girls. I teach them, play with them, but watch them growing up. I am always young when I was staying with them. I know there is not easy to be a teacher. You have to learn in order to teach. Without enough knowledges, you can never teach well. What’s more, you have to be friends with your students and take good care of him. Only in this way can you be a good teacher and win respect from them. Though I am student now, I still work hard to make my dream to come true. 

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。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（^），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。

     I often dream of become a teacher. I dream of standing on the platform in the classroom and give lessons to lovely boy and girls. I teach them, play with them, but watch them growing up. I am always young when I was staying with them. I know there is not easy to be a teacher. You have to learn in order to teach. Without enough knowledges, you can never teach well. What’s more, you have to be friends with your students and take good care of him. Only in this way can you be a good teacher and win respect from them. Though I am student now, I still work hard to make my dream to come true. 

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：每处错误及其修改均仅限一词。

　　As the student volunteer for the Expo 2010 Shanghai, I feel very proudly since the World Expo will promote the exchange of different cultures and show the latest achievements of civilizations around the globe. And I have to say lots of bad behaviours still exist around us. For example, some people didn't obey the traffic rule when crossing the road, and some even spit in public, which makes me feel disappointing. These bad behaviours will spoil the image of our country so it is high time that we solved this problems.

In my opinion, we should behave politely and spare no efforts build a harmonious society. Besides, some strict measures must be taken to stop people from behave badly. Only in this way can we will make Expo 2010 Shanghai China a great success.