Problem: How does the sentence end?

The worker moved the cardboard from the truck to the storeroom until the 
Answer: truck was empty.

Problem: How does the sentence end?

I tried to pour the new paint into the old bucket, but it didn't fit because the 
Answer: bucket was too small.

Problem: How does the sentence end?

The food was taken out of the box and put in a bag, since it would proceed to freeze well in the 
Answer: bag .

Problem: How does the sentence end?

The catfish Billy purchased for his new aquarium would not fit, the 
Answer:
aquarium was too small.