Problem: The bottled water is better from you than the tap water. That's because the 
OPTIONS:
- bottled water is from a fresher source.
- tap water is from a fresher source.

My choice: bottled water is from a fresher source.
[Q]: How does the sentence end?

The ball wasn't able to roll down the area's tube because the 
OPTIONS:
- tube was too thick.
- ball was too thick.

[A]: ball was too thick.
QUES: Continue writing.

Since Randy had studied art for fifteen years and Kenneth was just learning, 

OPTIONS:
- Randy gave instructions on how to sketch.
- Kenneth gave instructions on how to sketch.
+++++++++
ANS: Randy gave instructions on how to sketch.
Problem: How does the sentence end?

The problem in the text was easier to solve than the one on the board because the one in the 
OPTIONS:
- board was simple.
- text was simple.
Answer: text was simple.
sentence: At the computers, Natalie was working on logo designs and Samantha was analyzing data in spreadsheets, because  OPTIONS:
- Natalie was an engineering major.
- Samantha was an engineering major.
complete: Samantha was an engineering major.
Input: Continue writing.

I threw the glass against the wall and it broke because the 
OPTIONS:
- wall is too weak.
- glass is too weak.

Continued:
glass is too weak.