Problem: How does the sentence end?

Having a successful and healthy pregnancy was more likely for Rebecca than Mary, because 
OPTIONS:
- Rebecca had better access to healthcare.
- Mary had better access to healthcare.
Answer: Rebecca had better access to healthcare.

Problem: How does the sentence end?

Having a relationship is hard work but I prefer that I receive letters rather than gifts since the 
OPTIONS:
- letters are homemade.
- gifts are homemade.
Answer: letters are homemade.

Problem: How does the sentence end?

Samuel was asked to bring a cake to work but not tell Michael. 
OPTIONS:
- Samuel had to keep a it a secret.
- Michael had to keep a it a secret.
Answer: Samuel had to keep a it a secret.

Problem: How does the sentence end?

To clean better, Johnny replaced his regular toothbrush with an electric toothbrush. The 
OPTIONS:
- electric toothbrush cleaned worse.
- regular toothbrush cleaned worse.
Answer:
regular toothbrush cleaned worse.