[Q]: How does the sentence end?

Edith's physics class was moved from the classroom to the theater because the 

[A]: classroom was unavailable.


[Q]: How does the sentence end?

It was Adam who had to prepare meals for Robert since 

[A]: Robert was an incompetent cook .


[Q]: How does the sentence end?

The storage  on the shelf is not enough to keep the bag. The 

[A]:
storage is small.