[Q]: How does the sentence end?

Kayla is jealous of Cynthia because 

[A]: Cynthia created a new rocket to fly into space.


[Q]: How does the sentence end?

Charlie decided to quit smoking so he threw away his carton but not his lighter because the 

[A]: carton wasn't a gift.


[Q]: How does the sentence end?

The pollen was giving Adam a runny nose but not Randy, as 

[A]:
Adam is sensitive to tree pollen.