— _____ that China has the largest number of mobile phone users.

— I believe so. It seems everyone has one. [ ]

A. Someone said

B. They told me

C. It is said

D. I was told

书面表达（满分30分）

假如你是Peter，你的美国朋友Serena对学中文很感兴趣，她写信向你请教如何写好中文，请你根据以下要点给他回信。1. 要有信心，做好吃苦的准备；2. 要学以致用，多说，多练

3. 要了解语言背后的文化

要求：1 可适当拓展，以使行文连贯     2词数：120词左右

Dear Serena,

I’m so happy to her that you’re interested in learning Chinese.

Yours,

Peter