[Q]: How does the sentence end?

Less animals fit in the cage than the barn because size of the 

[A]: barn was bigger.


[Q]: How does the sentence end?

Megan got a big kiss of thanks from Mary, because 

[A]: Megan had gotten them some flowers.


[Q]: How does the sentence end?

Kayla was well respected at church but not Laura because 

[A]:
Kayla had studied religion in college.