Problem: How does the sentence end?

Betty but not Rebecca would be a good private investigator because 
OPTIONS:
- Betty knew how to go unnoticed in a crowd.
- Rebecca knew how to go unnoticed in a crowd.
Answer: Betty knew how to go unnoticed in a crowd.
sentence: Liam brought home a new bed for his pet dog. However he had to take it back because the  OPTIONS:
- bed was too small.
- pet was too small.
complete: bed was too small.
Felicia told Erin that she was going to make out with this cute boy this weekend.  
OPTIONS:
- Felicia was excited.
- Erin was excited.
Felicia was excited.
Input: Continue writing.

All of the medications did not fit into the bottles because the 
OPTIONS:
- medications were too many.
- bottles were too many.

Continued: medications were too many.
Story needs to be completed:
when writing his poem, the words did not fit into the papers, the 
OPTIONS:
- papers was limited.
- words was limited.

My choice:
papers was limited.
Problem: How does the sentence end?

It was easier to comb the hair on the dog than on the cat because the 
OPTIONS:
- cat had shorter hair.
- dog had shorter hair.
Answer:
dog had shorter hair.