[Q]: How does the sentence end?

Katrina gives a bouquet of gladiolus to Maria, because 

[A]: Katrina wants to cheer their friend up.


[Q]: How does the sentence end?

John decided to place a bet wager for an upcoming race because the 

[A]: wager was small.


[Q]: How does the sentence end?

Lawrence yelled at Brett because 

[A]:
Lawrence was so upset about the news of his son's drug addiction.