問題詳情：
假設你是李華，你發現你的好朋友Tom昨天在學校一整天沒有說話，顯得悶悶不樂的樣子。你不知道他發生了什麼事情，感到很擔心，於是就寫了一封信詢問情況並表示願意幫助。
注意：
1. 詞數：100左右；
2. 可適當增加細節，以使文章連貫；
Dear Tom,
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Yours,
Li Hua
【回答】
知識點：提綱作文
題型：書面表達
