[Q]: How does the sentence end?

Joel taught Matthew how to sew a dress for school because 
OPTIONS:
- Joel was an expert.
- Matthew was an expert.

[A]: Joel was an expert.
QUES: Continue writing.

Eating sweets was a big problem for Carrie but not for Rebecca, thats why 

OPTIONS:
- Carrie has a small waistline.
- Rebecca has a small waistline.
+++++++++
ANS: Rebecca has a small waistline.
Problem: How does the sentence end?

James found that the tank was surprisingly easy to operate and not the vehicle because the 
OPTIONS:
- tank had complex controls.
- vehicle had complex controls.
Answer: vehicle had complex controls.
sentence: The kids laughed when the teacher wore the wig, but not the hat because the  OPTIONS:
- wig was colorful.
- hat was colorful.
complete: wig was colorful.
Patricia made a peanut butter and honey sandwich for her daughter Emily's lunch. 
OPTIONS:
- Patricia sang happily to herself as she made the sandwich.
- Emily sang happily to herself as she made the sandwich.
Patricia sang happily to herself as she made the sandwich.
Problem: Continue the following story.

Wrangling the cattle was easier for Laura than Jessica because 
OPTIONS:
- Laura grew up on a farm.
- Jessica grew up on a farm.
Here's how I want to continue it:
Laura grew up on a farm.