Question

—Hello，may I speak to Mary，please?— . A．No，hold on B．I’m Mary C...

—Hello，may I speak to Mary，please?— . A．No，hold on B．I’m Mary C．This is Mary speaking D．Wait for

Answer 1

C

本题为打电话用语，介绍我是谁通常用this is……来表示，故选C。