Problem: How does the sentence end?

Jeffrey quickly jumped to the rescue of Derrick after 
Answer: Jeffrey saw them falling onto the subway tracks.

Problem: How does the sentence end?

Living in the country is more appealing to Cherise than living in a city. The 
Answer: city is more foreign for her.

Problem: How does the sentence end?

Christine was giving a speech on deforestation and needed help from Jennifer because 
Answer: Christine wasn't as knowledgeable in the topic.

Problem: How does the sentence end?

The new tree John bought would not fit into the hole he dug for it, the 
Answer:
hole was too small.