Not so loud, please.
Please lower the volume.
It's too loud. Turn it down.
Wait here until I get back.
Please wait here for me.
Excuse me.
Can I help you?
Pardon me.
Hello, there! /Hi, there! 喂，你!
Do you have the time? 你知道几点了?
Do you have time? 你有空吗? --Sure.
Do you have a minute?
Can I ask you a favor? 我求你件事行吗?
Sure. What is it? /Sorry, I'm busy.
May I ask a favor of you?
Could you do me a favor?
Could you help me? /Can you help me?
May I ask you something? 我想打听点事
Sure. Go ahead. 当然，请说吧
May I ask you a question?
I'd like to ask you something.
I have a question.
Could you tell me something?
Do you have time to answer a question?
Could you answer a question?
I hate to bother you, but can I ask you a question?
Sorry for interrupting...
Oh, you're not. 噢，没关系
I 'm sorry to interrupt you.
May I interrupt you?
Excuse me for interrupting.
Forgive me for interrupting.
Guess what? 你猜怎么着?
What? / You know what? 怎么啦?
Sorry, I mistook you for someone else.
That's all right.
Sorry, I thought you were someone else.
You're not who I thought u were. Sorry.
Oops. My mistake. 不好，我弄错了
May I use your phone? --Go right ahead.
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