您能坐下来喝杯茶吗？
Would you please take a seat and have a cup of tea?

For example:
A: Would you please take a seat and have a cup of tea?
您能坐下来喝杯茶吗？
B: I'd love to. Thank you.我很乐意。谢谢你。

请让他进来。
Please send him in.

For example:
A: Mr. Green，Mr. White is here.格林先生，怀特先生来了。
B: Please send him in.请让他进来。

这边请。
This way please.

For example:
A: This way please.怀特先生，这边请。
B: Thank you very much.非常感谢。

您预约了吗？
Do you have an appointment?

For example:
A: Do you have an appointment?您预约了吗？
B: I'm afraid not.恐怕没有。

他什么时候有空儿和我见面呢？
When is it convenient for him to see me?

For example:
A: When is it convenient for him to see me?
他什么时候有空儿和我见面呢？
B: I think you'd better leave your card here, and I will contact you later. Is that OK?
我想您最好留下您的名片，迟些时候我再和您联系。这样可以吗？

这件事是私事。
My business is personal.

For example:
A: Would you tell me what you wish to see him about?
能告诉我您见他有什么事情吗？
B: My business in personal.这件事是私事。

能给他留张字条吗？
Will you please write him a note?

For example:
A: Will you please write him a note?能给他留张字条吗？
B: That's a good idea.这个主意不错。

你在等李先生吗？
Are you expecting Mr. Lee?

For example:
A: Are you expecting Mr. Lee?你在等李先生吗？
B: Yes, it is for 2:00，but I'm a little early.
是的,我约好2点，但是我来早了一点儿。

林小姐的办公室从这个门过去。
Ms. Lin's office is just through this door.

For example:
A: This is a very nice office you have.你这间办公室真好。
B: Thank you. Ms. Lin's office is just through this door.
谢谢你。林小姐的办公室从这个门过去。

你可以等一下吗？
Would you like to wait?

For example:
A: Would you like to wait?你可以等一下吗？
B: Yes, that will be fine.可以，没问题。

我来这里是来见约翰。
I'm here to see John.

For example:
A: May I help you?我能帮助您吗？
B: I'm here to see John. 我来这里是来见约翰。

请随便坐。
Please make yourself comfortable.

For example:
A: Please make yourself comfortable.请随便坐。
B: Thank you.谢谢你。

你要咖啡吗？
Can I get you some coffee?

For example:
A: Can I get you some coffee?你要咖啡吗？
B: No, thank you.不要，谢谢。

恐怕托马斯小姐现在不能见你。
I'm afraid Ms. Thomas is unable to meet with you now.

For example:
A: I'm afraid Ms. Thomas is unable to meet with you now.
恐怕托马斯小姐现在不能见你。
B: May I schedule an appointment?我可以安排个时间吗？
be unable to do 不能做......

我可以进去见林先生吗？
Can I go in to see Mr. Lin?

For example:
A: What can I do for you?能帮助您吗？
B: Can I go in to see Mr. Lin?我可以进去见林先生吗？

张先生正在等你。
Mr. Zhang is waiting for you.
Mr. Zhang is expecting you.

For example:
A: Mr. Zhang is waiting for you.张先生正在等你。
B: Yes. I hate to be late, but I could not find the building.
我知道，我很讨厌迟到，但我找不到你们的办公大楼。

林先生知道你今天早上要来拜访他吗？
Is Mr. Lin expecting your visit this morning?

For example:
A: Is Mr. Un expecting your visit this morning?
林先生知道你今天早上要来拜访他吗？
B: No, he isn't.不，他不知道。

我要等很长时间吗？
Will I have to wait long?

For example:
A: Will I have to wait long?我要等很长时间吗？
B: No, my manager should be able to see you in a minute.
不，我们经理应该很快就能见你。

曲先生正在开会，是急事吗？
Mr. Qu is having a meeting now. Is it urgent?

A: Mr. Qu is having a meeting now. Is it urgent?
曲先生正在开会，是急事吗？
B: Yes, it's a very urgent matter.是的，是紧急事情。