Problem: How does the sentence end?

The woman took the backpack instead of the duffle bag on the trip, because the 
Answer: duffle bag was more uncomfortable to carry.

Problem: How does the sentence end?

She wanted to add color to her room so she painted one side and added wallpaper to the other. The 
Answer: wallpaper was paper thin.

Problem: How does the sentence end?

Elena asked for health advice from Jessica, since 
Answer: Elena had never gotten the mumps before.

Problem: How does the sentence end?

Lindsey liked to use herbicide on their garden but Felicia avoided using it. 
Answer:
Felicia spent much time weeding their garden.