Problem: How does the sentence end?

Justin was not afraid to fight Leslie in the boxing ring, even though 
Answer: Justin was much smaller.

Problem: How does the sentence end?

Matthew played all the trendy mobile app games but not Donald because 
Answer: Matthew had a smartphone.

Problem: How does the sentence end?

Judging a good wine was easy for Ian but not Jeffrey because 
Answer: Ian had a thorough knowledge of wines.

Problem: How does the sentence end?

After Jason got sweaty from working out, he had to drink the juice instead of the water because the 
Answer:
juice was available.