Problem: How does the sentence end?

The hard working chemist took the chemicals from the box and put them into the refrigerator until the 
Answer: refrigerator was full.

Problem: How does the sentence end?

The crisp breeze signified the start of a storm while the sun receded, the 
Answer: sun giving up the sky.

Problem: How does the sentence end?

The plow was attached to the bull and the bell to the calf because the 
Answer: bell helped keep track of the calf.

Problem: How does the sentence end?

Bill was going to move to a large city but chose a small town instead because the 
Answer:
city wasn't very friendly.