[Q]: How does the sentence end?

Matthew tried to be stealthy while planning a party for Donald, but 

[A]: Donald found out from someone who couldn't keep a secret.


[Q]: How does the sentence end?

Heather came to determine that the math books were outdated by professional standards, because the 

[A]: standards were high quality.


[Q]: How does the sentence end?

The store had a sale on birdseed, so Kyle picked up a big bag, although Randy was annoyed. 

[A]:
Kyle considered feeding wildlife a good use of money.