Do you have any friends?

你有朋友吗？

He's an engineer.

他是工程师。

I invited him to come over, but he wouldn't.

我请他过来，但是他不肯。

I told him to come in and wait here.

我告诉他进来在这里等。

I'm a graduate of Yale University, I have a Bachelor of Science degree.

我是耶鲁大学的毕业生，我有理学学士学位。

Thank you for your kindness.

谢谢你的好心。