面试后的体检只是走个形式，因为他的健康状况已经在档案里了。

The medical check after the interview was just a ___formality, since his health records were already on file.

这场婚礼的正式程度要求每位宾客都必须穿西装打领带。

The ___formality of the wedding required all guests to wear suits and ties.

他们的握手只是一种礼节，没有真正的热情。

Their handshake was just a ___formality, with no genuine warmth.