Problem: How does the sentence end?

Christine needed to use a moisturizer after taking a shower but not Monica because 
Answer: Monica had oily skin.

Problem: How does the sentence end?

Natalie's cell phone is older than Emily's because 
Answer: Natalie spends much less money on technology.

Problem: How does the sentence end?

The restaurant was crowded, so Cynthia suggested to Lindsey that they not eat at all but 
Answer: Lindsey was really hungry.

Problem: How does the sentence end?

The window could prevent the wind from getting in because the 
Answer:
window was strong .