I saw him       a large box in his hands and enter the room．    

My mother is a teacher of E____. She is very k____ to her students. She always h____ them with their lessons. After class she often t____ to them and l____ to them carefully. My mother loves her job and she is n____ be late for work. She goes to work on foot. It takes her h____ an hour to get to school. All the pupils in my class like her i____ class.

已知实数x，y满足$\left\{\begin{array}{c}\begin{array}{c}y\le x\\ x+2y\le 4\\ y\ge -2\end{array}\\ {\left(x+1\right)}^2+{\left(y-1\right)}^2=r^2\left(r>0\right)\end{array}\right.$，则r的最小值为（   ）

请修改下面的短文。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 Chris,

    Here are good news for you. A famous Opera, Butterfly Lovers, will put on this Saturday. Butterfly Lovers is one of the most tradition love story. I know you show great interest in Chinese culture, especially for the local operas. I hope this opportunity will not only make you happy, but also satisfies your interest in Chinese opera. If you can come, I suggest have a look at the museum near the theater after watch the opera. There, I believe, I can know the history of many Chinese operas, which can increase your knowledges about Chinese traditional operas. I'm looking forward to receiving your reply.