[Q]: How does the sentence end?

Megan asked Emily how to ride a horse, because
OPTIONS:
- Megan had ridden many times before.
- Emily had ridden many times before.

[A]: Emily had ridden many times before.

[Q]: How does the sentence end?

He used to switch from aspirin to another medication for the neck pain because the
OPTIONS:
- aspirin was weak.
- pain was weak.

[A]: aspirin was weak.

[Q]: How does the sentence end?

The man had no problem fitting the sleeping bag in the trunk because the
OPTIONS:
- sleeping bag was compact.
- trunk was compact.

[A]:
sleeping bag was compact.