Problem: How does the sentence end?

Donald has an easier time than Aaron making friends in high school due to 
Answer: Aaron being more shy.

Problem: How does the sentence end?

The staff the man bought made out of plastic was actually nicer than the wood one because the 
Answer: wood one was a fake.

Problem: How does the sentence end?

Soccer causes more leg injuries than head injuries because there is less contact to the 
Answer: head .

Problem: How does the sentence end?

The task was not completed by Sarah unlike the task of Betty, because 
Answer:
Sarah was very unprepared.