Problem: How does the sentence end?

The machines were much less effective for slimming the thighs than the weights were, as the 
OPTIONS:
- machines barely worked them.
- weights barely worked them.
Answer: machines barely worked them.

Problem: How does the sentence end?

Tom wanted a piece of candy but he had not done the chores his mom asked him to do today.  Tom did the 
OPTIONS:
- chores quickly to have the candy.
- mom quickly to have the candy.
Answer: chores quickly to have the candy.

Problem: How does the sentence end?

Joel had to prepare a fancy dinner for Robert, because 
OPTIONS:
- Joel had been hired as a chef.
- Robert had been hired as a chef.
Answer: Joel had been hired as a chef.

Problem: How does the sentence end?

It's better to fast for the short term than the long term as the 
OPTIONS:
- short term  is easier on body.
- long term  is easier on body.
Answer:
short term  is easier on body.