Do you mind if I ask your friend out?
你介意我叫你朋友出去吗？

Do you mind if I borrow your book?
你介意我借用你的书吗？

Do you mind if I have the last piece cake?
你介意我吃了最后一快蛋糕吗？

A:Do you mind if I ask your friend out?
你介意我叫你朋友出去吧?

B:Of course,but we aren't going out,we're just friends.
当然，不过，作为朋友，我们还是不出去吧。

A:Okay,that's good.
好的，没关系。

B:Do you want me to put in a good word for you?
你想听我一句忠言吗？