Problem: How does the sentence end?

Michael enjoyed the poetry reading more than Craig because 
Answer: Craig had majored in Math during college.

Problem: How does the sentence end?

Rachel handed Carrie twenty dollars so at the cash register 
Answer: Carrie could sell the collar for the puppy.

Problem: How does the sentence end?

The camera came in more handy for spying on people than the microphone did because the 
Answer: camera is more powerful.

Problem: How does the sentence end?

The pancakes that I had yesterday were better than the muffins today, because the 
Answer:
pancakes were fresher.