他给了我一个不同的借口来解释他的缺席。

He gave me a different ___story for his absence.

她坚持同一个关于丢失钥匙的说法。

She stuck to the same ___story about losing her keys.

他的不在场证明只是一个编造的故事，以避免怀疑。

His alibi was just a made-up ___story to avoid suspicion.