[Q]: How does the sentence end?

Steven was able to divide in math class much faster than Justin, so 

[A]: Justin had a bad score on the test.


[Q]: How does the sentence end?

Vera craved steamed asparagus while she was pregnant but ditched the pepperoni pizza. Therefore the 

[A]: pizza was wasted.


[Q]: How does the sentence end?

Elena is a more efficient teacher than Tanya because 

[A]:
Elena takes the time to teach the students.