Problem: How does the sentence end?

Since Elena fell into the river while Rebecca remained in the boat, 
Answer: Rebecca remained dry on the excursion.

Problem: How does the sentence end?

Kenneth went to hike in the vast Canadian wilderness without Robert because 
Answer: Robert doesn't like outdoors.

Problem: How does the sentence end?

Megan's toilet was broken, so they called Cynthia to fix it, and 
Answer: Megan was pleased that the work was done quickly.

Problem: How does the sentence end?

Jennifer asked Mary for help understanding the diagnosis given by the doctor because 
Answer:
Mary had a lot of medical training.