[Q]: How does the sentence end?

I discovered I was allergic to beeswax so I got rid of my lip balm but not my body wash since the

[A]: lip balm had plenty of the ingredient.

[Q]: How does the sentence end?

Mike used a new notebook for his notes instead of his notepad, since the

[A]: notepad was full .

[Q]: How does the sentence end?

The teacher flunked Craig in chemistry while Joseph got a good grade because

[A]:
Joseph was a good at chemistry.