"That is our friend."

Translation: 那是我们的朋友。

[ASchaufele]

Ok, i typed in the first 5 characters. Why do i have to put in the last two?

[Wadafik]

the last two characters mean "friend." without the characters your sentence means "that is our"

[Keith_APP]

Yes. And it also means a complete sentence That is ours. We don't normally say that for a person (neither do we in English). : )

[LauPaSat]

Do I need 的 in this sentence? Or is it ok to omit it

[Adrian982119]

Can you also say：这是我们的朋友。
？Or has it to be 那？

[Adrian982119]

Hello past Adrian!
Yes it has to be 那, otherwise it would mean "this" instead of "that".

Your future Adrian

[Adrian982119]

Thank you so much!

[Gelukservaring]

Your future self will be grateful, some time in the past.