他的忠诚从未受到质疑。

His ___loyalty was never in question.

她对事业的忠诚令人印象深刻。

Her ___loyalty to the cause is impressive.

我想说的是，当宠物服从并表现出对你的忠诚时，它们是理想的。

What I can say is that pets are ideal when they obey and show ___loyalty to you.