Problem: How does the sentence end?

Michael liked to play the piano. Randy did not.
Answer: Michael thought the piano was a wonderful instrument.

Problem: How does the sentence end?

Writing with the chalk was a little more difficult than with the marker as the
Answer: chalk was rather invisible to the naked eye at a distance.

Problem: How does the sentence end?

William was very haphazard about safe sex but Derrick was very careful.
Answer: Derrick had two planned children to care for.

Problem: How does the sentence end?

It seemed more likely that Logan would publish a scientific paper rather than Nelson because
Answer:
Logan had done a lot of research.