Problem: How does the sentence end?

Rachel was a better researcher than Patricia and  
Answer: Rachel  was conceited about it.

Problem: How does the sentence end?

Kevin was able to hit the ball longer than William because 
Answer: Kevin had been practicing more.

Problem: How does the sentence end?

The baby liked playing with the rattle more than playing with the ball because the 
Answer: ball was dull in color.

Problem: How does the sentence end?

The towels at my moms house are better than the napkins because the 
Answer:
towels soak up more water.