[Q]: How does the sentence end?

Eric was better at cooking chicken than Ryan because 

[A]: Ryan spent very little time reading recipes.


[Q]: How does the sentence end?

I tried to install a bird perch bar into my bird's cage, but struggled to get it in due to the 

[A]: cage being too narrow.


[Q]: How does the sentence end?

Donald took the lead in the musical instead of Ryan because 

[A]:
Donald had a better voice.