[Q]: How does the sentence end?

I liked doing yoga on the mat more than on the floor because the 

[A]: floor was hard.


[Q]: How does the sentence end?

The girl felt that Nelson but not William was a better boyfriend because 

[A]: Nelson was always romantic.


[Q]: How does the sentence end?

The teen decided to go with the toothpaste and not the whitener on the shelf since the 

[A]:
toothpaste was gentle.