[Q]: How does the sentence end?

Christopher needs Ian's advice on how to create a positive classroom atmosphere, because

[A]: Christopher is a new teacher.

[Q]: How does the sentence end?

Steven put the water on to boil like Joseph asked because

[A]: Steven wanted to help make the rice.

[Q]: How does the sentence end?

Lucy decided to put a braid in her hair instead of the bow because the

[A]:
braid was more professional.