[Q]: How does the sentence end?

The chef tried to store the paste in the tube but the 

[A]: tube was too small.


[Q]: How does the sentence end?

Justin got the worse deal in the agreement with Jason, so 

[A]: Jason is the more astute negotiator.


[Q]: How does the sentence end?

Kenneth asked Dennis what time the dance was being held, but 

[A]:
Dennis had forgotten.