[Q]: How does the sentence end?

I put all my coins in a piggy bank instead of a coin purse because the 

[A]: piggy bank was large enough.


[Q]: How does the sentence end?

Andy decided to go to the central park and not the hidden library because the 

[A]: park was more accessible.


[Q]: How does the sentence end?

Adam was so sad, while Nick seemed calm, although 

[A]:
Nick had suffered a real family tragedy.