Did you get that?/Do you understand?你明白吗？
Are you listening to me?/Are you paying attention?你在听我说话吗？/你在注意听吗?

Is there something else going on over there?你那边有其他的事情吗？

You sound like you're distracted.你好像并没有集中注意听我说话。

Could you repeat that to me to make sure you got it?你能再重复一遍确保你记下了吗？

Did you understand everything I just said?你明白我刚刚说的吗？

Are you writing this down?你记下了吗？
I didn't catch that last part. 我没听明白最后一部分。
Could you repeat that, please?能请你重复一遍吗？
Please speak slower.请说慢点。
I think I got it./Yeah, I got everything. 我明白了。/是的，我都明白了。
I'm sorry, there are too many people talking in the background. What did you say?对不起，我这里说话的人太多了，你刚刚说了什么？


Dialogue:
A: Did you get all that?你都记下了吗？
B: Let me repeat it. You will be in your office until three, after which he canreach you at 455-998, right?我来重复一遍。你会在办公室待到三点，之后联系你打455998，对吗？