In this task, you are given a sentence in English and your task is to translate it into Spanish. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).

How do we ensure that unlawful state aid is paid back?
¿Cómo nos aseguramos de que nos sea devuelta la ayuda estatal declarada ilegal?

We have been awaiting a common communication from the Commission on the precautionary principle for a very long time now and it was anything but clear in the past as to whether the Commission speaks with one voice.
La primera: hemos tenido que esperar mucho tiempo a una opinión de la Comisión sobre el principio de precaución y en el pasado no estaba en absoluto claro si la Comisión hablaba con una sola voz.

In the present situation, I am therefore sceptical about the idea of a European prosecutor, which it is scarcely possible to implement within the framework of the present treaty.

En la actualidad, la idea de un fiscal europeo me produce escepticismo, es algo que parece impracticable en el marco de los tratados vigentes.