经理保证所有问题都会迅速解决。

The manager offered an ___assurance that all issues would be resolved promptly.

我们收到政府的保证，政策不会改变。

We received ___assurances from the government that the policy would not change.

她支持的保证对团队的士气至关重要。

Her ___assurance of support was crucial for the team's morale.