Problem: How does the sentence end?

The mother taught Nelson instead of Justin to crochet, because 
Answer: Nelson was interested in crafts.

Problem: How does the sentence end?

Natalie spent a lot of time brushing their hair but it only took Patricia two minutes, since 
Answer: Natalie had extremely long hair.

Problem: How does the sentence end?

Alicia struggled to pay off their debt with the money they had because the 
Answer: debt was high.

Problem: How does the sentence end?

The math test was easy for Kevin but not Nick because 
Answer:
Nick did not know how to convert decimals into fractions.