1. (2017高二上·凌源月考) 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