Dear Li Ming，

　　I am writing to ask about if you are able to do me a favor. I want to have a pen friend, who'd better being a girl in her early twenty, and with interests similar to mine. In my mind, she is someone interesting in traveling, swimming, and playing table tennis. Beside, it would be better for her to have a pet dog as I have been keeping that at home for some time. With such a pen pal, I hope I can share her my experiences in traveling, taking care of pets, or whatever we have in the common. I believe I would improve my English by doing so and learning more about her country. I am looking forward to hearing from you soon.

　　Yours，

　　Li Hua

　　答案：

Dear Li Ming，

　　I am writing to ask you are able to do me a favor. I want to have a pen friend, who'd better a girl in her early ， and with interests similar to mine. In my mind, she is someone in traveling, swimming, and playing table tennis. ， it would be better for her to have a pet dog as I have been keeping at home for some time. With such a pen pal, I hope I can share her my experiences in traveling, taking care of pets, or whatever we have in common. I believe I improve my English by doing so and more about her country. I am looking forward to hearing from you soon.

　　Yours，

　　Li Hua

　　难项分析：

　　第一处：去掉about或if→whether　考查宾语从句的连接词。由介词about可知，应用whether引导宾语从句，介词后的宾语从句一般不用if引导。也可删去about，由if引导该宾语从句。

　　第五处：Beside→Besides　考查副词。besides在此处的意思是"此外"，beside是介词，意为"在......旁边"，根据语境可知，应把Beside改为Besides。

　　第十处：learning→learn　考查情态动词的用法。此处的动词和前面的improve并列，位于情态动词后，共同作宾语从句的谓语，故把learning改为learn。