[Q]: How does the sentence end?

That Ian would have a more healthy immune system than Hunter was likely because

[A]: Hunter did not eat a lot of fruits and vegetables.

[Q]: How does the sentence end?

Lawrence showed Justin his nasty homemade soup and insisted that he try some.

[A]: Lawrence was persistent.

[Q]: How does the sentence end?

At the construction site, only Kenneth can drive the bulldozer, not Brian.

[A]:
Brian is waiting on their license to do so.