Have you bought any cake?

你买蛋糕吗？

How deep?

多深？

I hope you can accept my offer.

我希望你能接受我的建议。

I wonder how many girl friends he's got.

我不知道他有多少女朋友。

I'm a graduate of Yale University, I have an M.S.degree.

我是耶鲁大学的毕业生，我有理学硕士学位。

It seems he's disappointed.

看起来他好像很失望。