Problem: How does the sentence end?

Donald wanted to get a milkshake but Nick didn't want one. 
Answer: Nick had a lactose intolerance.

Problem: How does the sentence end?

Ian began to test Ryan on various elements in the periodic table, because 
Answer: Ian was good at science.

Problem: How does the sentence end?

Craig transcribes slower than Ian because 
Answer: Ian invested in a pair of high quality headphones.

Problem: How does the sentence end?

Nick told Eric that he got into college because 
Answer:
Eric was excited for him go to.