[Q]: How does the sentence end?

Aaron was really upset that they had treated their friend Ian badly, so to make it for it 
OPTIONS:
- Aaron gave a gift to them.
- Ian gave a gift to them.

[A]: Aaron gave a gift to them.
QUES: Continue writing.

Jeremy bought chicken fillet instead of beef steak, because he was shopping on a budget and  the 

OPTIONS:
- chicken fillet was less expensive.
- beef was less expensive.
+++++++++
ANS: chicken fillet was less expensive.
Problem: How does the sentence end?

She bought a new tank to replace the old habitat for her gecko because the 
OPTIONS:
- tank was larger.
- habitat was larger.
Answer: tank was larger.
sentence: The death of the actor was felt more by Justin than Logan because  OPTIONS:
- Justin was a close relative.
- Logan was a close relative.
complete: Justin was a close relative.
Everyone knew that Steven would turn on Dennis. 
OPTIONS:
- Steven had a habit of using others without thinking of possible consequences.
- Dennis had a habit of using others without thinking of possible consequences.
Steven had a habit of using others without thinking of possible consequences.
Problem: Continue the following story.

The book took longer to read than the novella because the 
OPTIONS:
- book was much shorter.
- novella was much shorter.
Here's how I want to continue it:
novella was much shorter.