Problem: How does the sentence end?

I always use reusable bag rather than plastic bag when I shop because the 
Answer: reusable bag is friendly for the environment.

Problem: How does the sentence end?

The children were afraid to go in the kitchen, but loved the basement, as the 
Answer: kitchen was a foreboding place.

Problem: How does the sentence end?

Cynthia wanted to buy the children some toys, but Jennifer said not to. 
Answer: Cynthia thought toys were a fun use of spending money.

Problem: How does the sentence end?

Nelson was required to keep a food journal that Derrick was not because 
Answer:
Derrick had already completed a diet.