Problem: How does the sentence end?

The air was stuffy in the kitchen but refreshing in the den, as the 
Answer: kitchen was so poorly ventilated.

Problem: How does the sentence end?

The thief tried to hide the costume in the closet but the 
Answer: costume was too large.

Problem: How does the sentence end?

Marge took the SUV to work and not the car because the 
Answer: SUV got better gas mileage.

Problem: How does the sentence end?

Kevin could draw very well, Brian could not so 
Answer:
Kevin intended to pursue a career in art.