—Hello. Mike speaking. Is Ann in?—Sorry she’s gone to Beijing. A. I am B. This is C. That

问题补充：

—Hello. Mike speaking. Is Ann in?

—Sorry, she’s gone to Beijing.

A. I am B. This is C. That is

答案：

解析：考查打电话用语。打电话时介绍自己使用This is… speaking.结构，故选择B项。