情景对话：
Jesse: Hello, Mr. White. This is AT&T calling. Are you happy with…
Walter: Hello. This is Walter White speaking.

知识点讲解：

This is… 我是…
Hello. This is Xiaoyi.
你好，我是小意。

Is this …? 你是…？
Hello, is this Maria Smiths?
你好，是Maria Smiths吗？

Hello, is this Dean Evans speaking?
你好，请问是不是Evans院长？

Hi, may I speak with....?
嗨，我能跟…说话吗？/我想找…

Hi, may I speak with Mr. Ross?
嗨，我能跟Ross先生说话吗？

Good Afternoon, may I speak with Linda?
下午好。我能跟Linda说话吗？

Hi, I'm… calling from…
我是xxx的谁谁谁。

Hi, is this Rita? Good, I'm Gavin Ash calling from your Psychology class.
你是Rita吗？我是你心理学课上的 Gavin Ash.

Hey Frank, I'm Jack calling from the other night. We exchanged numbers at the library.
嘿Frank，我是那天认识的Jack。我们在图书馆里交换了电话号码。

Are you available now?
你现在有空吗？

Hey, Jack are you available? I need to talk to you.
嘿，Jack你现在有空吗？我得跟你聊聊。

Can you talk now?
我能跟你聊聊吗？

What's up Yuki? Can you talk now?
Yuki，你好吗？你现在能聊一下？

This is him. 我就是。
This is her. 我就是。

A: Is this Rick speaking?
是Rick吗？
B: This is him.
我就是。

Speaking. 我就是。

A: Hi, may I speak to Holly?
我能跟Holly说话吗？
B: Speaking.
我就是。

How may I help you?
有什么能帮你的？

How may I help you?
有什么能帮你的？

This is Ms. Wang. How may I help you?
我是王女士。有什么能帮你的？

What do you need?
有什么能帮你的？

This is Kelly speaking. What do you need?
我是Kelly。有什么能帮你的？

What's up?
你好；什么事？

A: Hey Kim, can you talk?
嗨Kim，你能说话吗？
B: Yeah, what's up?
能啊，什么事？

A: Is this Tim speaking?
是Tim吗？
B: Yup, what's up?
对啊，什么事？

May I ask who's calling?
请问您是哪位？

A: Hi, is Summer there?
嗨，Summer在吗？
B: May I ask who's calling?
我能问一下是谁打来电话吗？

Who are you?
你是谁呀？