What is meant by saying that a hypothesis must be testable?

Trabajo colaborativo un emprendimiento dedicado a la produccion y venta de sacos de lana de oveja, tiene los siguientes costos mensuales:

Cara meyakinkan ibu bapa untuk penggunaan peranti yang selamat

Choose the answer that best completes the sentence. at midnight, the little men came skipping in and were about to set to work on the leather; instead of the leather ready to cut out, they found the charming little clothes.