Problem: How does the sentence end?

The male student write thirty pages over the summer while the female student only wrote one. The 
Answer: male student is more proficient at writing.

Problem: How does the sentence end?

The athlete felt natural on the grass, but not on the ice, because the 
Answer: ice is different than what they're used to playing on.

Problem: How does the sentence end?

Donald would not greet Leslie no matter how many times they said hello. 
Answer: Donald was also rude to everyone.

Problem: How does the sentence end?

Adam enjoyed reading less than Robert, and consequently 
Answer:
Robert owned a very large number of books.