[Q]: How does the sentence end?

Tanya had a baby and Jennifer was over the moon because 
OPTIONS:
- Tanya had always wanted to be a father.
- Jennifer had always wanted to be a father.

[A]: Jennifer had always wanted to be a father.
QUES: Continue writing.

She couldn't move the ivy plants to the new pots because the 

OPTIONS:
- new pots were too small.
- ivy plants were too small.
+++++++++
ANS: new pots were too small.
Problem: How does the sentence end?

A goldfish was a boring pet for Matthew but Samuel loved it, as 
OPTIONS:
- Matthew wanted more interaction with a pet.
- Samuel wanted more interaction with a pet.
Answer: Matthew wanted more interaction with a pet.
sentence: John wanted to build a playhouse for his kids, but bought them a toy instead because the  OPTIONS:
- playhouse was cheaper.
- toy was cheaper.
complete: toy was cheaper.
The kitty didn't fit into the litter box that we bought for her because the 
OPTIONS:
- box is too small.
- kitty is too small.
box is too small.
Problem: Continue the following story.

She normally kept her ID and a pocket knife in the car, but when visiting her husband in prison she left the 
OPTIONS:
- ID behind.
- knife behind.
Here's how I want to continue it:
knife behind.