Story needs to be completed:
The musician tried to save the vocals on the discs but the 
OPTIONS:
- vocals were too large.
- discs were too large.

My choice:
vocals were too large.
Problem: Continue the following story.

Megan had vodka and Christine did not have any, so 
OPTIONS:
- Megan needed a designated driver for that night.
- Christine needed a designated driver for that night.
Here's how I want to continue it: Megan needed a designated driver for that night.
Problem: Tanya discreetly told Katrina that her boyfriend was controlling her every move.  
OPTIONS:
- Tanya was scared.
- Katrina was scared.

My choice: Tanya was scared.
[Q]: How does the sentence end?

There is more opportunities for work in larger cities than in small towns because the 
OPTIONS:
- cities have less people to service.
- towns have less people to service.

[A]: towns have less people to service.
QUES: Continue writing.

Katrina was smarter than Victoria, because 

OPTIONS:
- Katrina had been the first one to figure out how to build the mechanism.
- Victoria had been the first one to figure out how to build the mechanism.
+++++++++
ANS: Katrina had been the first one to figure out how to build the mechanism.
QUES: Continue writing.

Lawrence buys Robert a watch for a graduation present because 

OPTIONS:
- Lawrence is a great student.
- Robert is a great student.
+++++++++
ANS:
Robert is a great student.