假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。

文中共有10处语言错误，共有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：在缺词处加一个漏词符号(/\)，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：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11处起)不计分。

Manager,

I am an exchange student from China. Yesterday, I went to your cinema to see a film. The film was very well, but I did not enjoy it because there were some problem in the cinema.

First, the film was delayed as there were so much advertisements at the beginning. It was rather annoyed. Second, the sound of the film was too loud that I could hardly bear. The EXIT signs could not be seen clearly, which presented potential safety hazards. If something terribly should happen, it will be difficult for people to get out quickly.

As a visitor to your city, I’m disappointed with my experience in your cinema. I am writing a letter in the hope that you can consider about these problems and make some improvement.

Yours faithfully,

Li Hua

He began to take political science_____ only when he left school.

A．strictly

B．truly

C．carefully

D．seriously