[Q]: How does the sentence end?

Hunter hired Eric to install new green energy windows because 

[A]: Eric knew how to do it.


[Q]: How does the sentence end?

Katrina was really crazy about Christine all these years because 

[A]: Katrina couldn't control their emotions.


[Q]: How does the sentence end?

I could not find any lillies to put in my gardens because the 

[A]:
gardens were very full already.