[Q]: How does the sentence end?

The new deck wouldn't fit behind the house because the
OPTIONS:
- deck was just too long.
- house was just too long.

[A]: house was just too long.

[Q]: How does the sentence end?

Christine knew how to sew but Cynthia did not, so
OPTIONS:
- Christine taught them very basic techniques.
- Cynthia taught them very basic techniques.

[A]: Christine taught them very basic techniques.

[Q]: How does the sentence end?

The chemicals that I bought didn't clean the counters well because the
OPTIONS:
- chemicals were too dirty.
- counters were too dirty.

[A]:
counters were too dirty.