1. 假如你是李华，请阅读你的美国笔友 Alex给你发的这封电子邮件，然后根据邮件内容回复 Alex。

Dear Li Hua,     I had a trip to London last week, and it was excellent. Do you have an unforgettable (令人难忘的) trip? Please write to me about it. Yours, Alex

要求：60 词左右；电子邮件的格式和开头已给出，不计入总词数。

Dear Alex,

    Thank you for your e-mail. I'm glad to hear you had a good trip.

   

Yours,

Li Hua