[Q]: How does the sentence end?

Matthew offered to help write a fitness plan for Christopher because 

[A]: Christopher was out of shape.


[Q]: How does the sentence end?

David wanted to sell his apartment and buy a house, because the 

[A]: apartment is too small.


[Q]: How does the sentence end?

He didn't want to send the personal letter to her, so he sent a card instead.  The 

[A]:
card was appropriate to share.