Problem: How does the sentence end?

I wanted a new design for my company, but opted for a graphic because the 
Answer: design was more expensive.

Problem: How does the sentence end?

Katrina was smarter than Victoria, because 
Answer: Katrina had been the first one to figure out how to build the mechanism.

Problem: How does the sentence end?

Neil is determined to overcome his laziness and help Matthew do yard work, but 
Answer: Neil is struggling to get up.

Problem: How does the sentence end?

Natalie asked for help from Katrina to write a cover letter for their resume. 
Answer:
Katrina was more experienced at job searching.