Problem: How does the sentence end?

Rebecca loves to run in the forest every day while Betty loves to sit on the couch every day watching tv. Many think 
Answer: Rebecca is active.

Problem: How does the sentence end?

Sarah always had more color than Maria, as 
Answer: Maria spent very little time in the sun.

Problem: How does the sentence end?

Jane added fertilizer to the vegetables in the ground but not to the pot. The ones in the 
Answer: ground did grow well.

Problem: How does the sentence end?

Tanya had a bad case of diarrhea but Katrina did not. 
Answer:
Katrina didn't soil the pants they were wearing.