Problem: How does the sentence end?

Mr. Farmer's son noticed a hole in the wooden fence so he tried hitting a golf ball through it; he didn't realize that the 
Answer: ball was too large.

Problem: How does the sentence end?

Since Robert had a fear of heights while Jeffrey had a fear of people, 
Answer: Robert avoided tall buildings.

Problem: How does the sentence end?

Brett bought Kevin dinner at a fancy Italian restaurant for his birthday, 
Answer: Kevin felt very thankful.

Problem: How does the sentence end?

Angela had a more difficult time writing poetry than Rachel, as 
Answer:
Angela was very unoriginal.