Problem: Continue the following story.

Derrick studied very hard in grad school but Hunter didn't, so 
Here's how I want to continue it: Derrick passed their exams with top marks.

Problem: Continue the following story.

Chelsea didn't have the motivation to play violin but did for the piano because the 
Here's how I want to continue it: violin was awkward.

Problem: Continue the following story.

Joseph got their homework done with ease while Leslie kept running into obstacles, so 
Here's how I want to continue it:
Leslie took a long time to get theirs done.