假定你是李华。你的笔友林涛来信说，因学习忙、锻炼少，最近经常生病，影响学习。请根据提示写一封英文回信。

要点包括：

1）锻炼的重要性；

2）锻炼有利学习；

3）提出锻炼建议。

注意：1）词数100左右；

2）可适当增加细节，以使行文连贯。

3）信的开头和结尾已为你写好。

Dear Lin Tao,

    Sorry to hear that you have been sick for days and hope you are better now.

Sincerely yours,

Li Hua

根据短文内容，选择正确答案。
B
    I'm Kate from the UK. I'm in the Chinese club in our school. I like Chinese and I think it's interesting. My Chinese is very good. I can tell and write stories in Chinese. My favorite writer (作家) is Mo Yan from China. Now let me tell you something about my favorite writer and his family.     Mo Yan's real (真的) name is Guan Moye. Mo Yan is his pen name. This year Mo is 57 years old. His birthday is on February 17th. Mo writes stories very well. He can also write with his left hand (左手). Mo has a daughter. Her name is Guan Xiaoxiao. The girl can also write stories but she can't write with her left hand.

在生活中，下列过程发生了化学变化的是（  ）

Jack is discussing the game with his friends when I get there.

根据药理分析，一种茅草的根内含多种有益于健康的成分，判断该产品是否适用于糖尿病患者饮用时，应该选择下列哪种试剂进行实验鉴定 （　）