[Q]: How does the sentence end?

Her foot wouldn't fit into the shoe no matter how hard she tried because
OPTIONS:
- foot was too small.
- shoe was too small.

[A]: shoe was too small.

[Q]: How does the sentence end?

Emily taught Cynthia how to slice meat with the deli machine, and
OPTIONS:
- Emily was good at teaching.
- Cynthia was good at teaching.

[A]: Emily was good at teaching.

[Q]: How does the sentence end?

James finished watching the movie while on a journey to his hometown. The
OPTIONS:
- movie is short.
- journey is short.

[A]:
movie is short.