她是我最信任的朋友，我们分享所有秘密。

She is my closest ___friend and we share all our secrets.

他一直是动物权利的坚定支持者。

He has always been a ___friend to animal rights.

我刚在Instagram上关注了她，但她还没有回关我。

I just ___friended her on Instagram, but she hasn't followed me back yet.