Story needs to be completed:
Eric asked Christopher to set up his computer despite the fact that 
OPTIONS:
- Eric knew nothing about computers.
- Christopher knew nothing about computers.

My choice:
Christopher knew nothing about computers.
Problem: Continue the following story.

The electric toothbrush did not clean her teeth better, but improved his gum, since the 
OPTIONS:
- teeth responded poorly to the brush's vibrations.
- gum responded poorly to the brush's vibrations.
Here's how I want to continue it: teeth responded poorly to the brush's vibrations.
Problem: The commercials for toothpaste were more effective than the ones for lipstick, because the 
OPTIONS:
- toothpaste ads were lackluster.
- lipstick ads were lackluster.

My choice: lipstick ads were lackluster.
[Q]: How does the sentence end?

Susie was forced to throw out her doll and replace it with a teddy bear. Her parents said the 
OPTIONS:
- doll was dirty.
- teddy bear was dirty.

[A]: doll was dirty.
QUES: Continue writing.

Steven ate all the squash before William could get any, so 

OPTIONS:
- Steven had an empty belly that night.
- William had an empty belly that night.
+++++++++
ANS: William had an empty belly that night.
QUES: Continue writing.

Hunter had to take some medicine, although Joel did not, because 

OPTIONS:
- Hunter didn't have a fever.
- Joel didn't have a fever.
+++++++++
ANS:
Joel didn't have a fever.