Problem: How does the sentence end?

Living abroad for the year suited Emily more than Mary because 
Answer: Mary missed her home.

Problem: How does the sentence end?

The ride on the train made her head ache, but not the car, since the 
Answer: car was quieter.

Problem: How does the sentence end?

The friendly waitress poured the strong black coffee from the pot into the mug until the 
Answer: mug was full.

Problem: How does the sentence end?

In a group Cynthia was usually silent but Rebecca was not because 
Answer:
Cynthia was a naturally reserved person.