对于火灾的起因，我们正保持开放的心态。

We're ___keeping ___an ___open ___mind about the causes of the fire.

在现代社会，倾听、沟通并保持开放的心态至关重要。

To listen, communicate, and ___have ___an ___open ___mind is essential in today's world.

讨论新技术时，保持开放的心态很重要。

When discussing new technologies, it's important to ___have ___an ___open ___mind.