英语作文：假如你说是李明，最近你的笔友T O M 情绪低落请你给他写一封邮件

Dear Tom,
I am so worried to hear that you were in a bad mood. Could you please tell the reason?
We are friends and you may tell me your worry or trouble. i think i can help you out of trouble. Nothing is impossible in the world . So we shouldn't be in low spirit. Cheer up! It is
not the end of the world! If possible, you can call me or write to me. I am looking forward to receiving your letter or call !
Li MIng

没有原因吗