Problem: Continue the following story.

Public speaking made Rachel happy but not Betty because ( 
Here's how I want to continue it: Rachel ) was a very good speaker.

Problem: Continue the following story.

Tammy always had cereal for breakfast and left out the bagel because the 
Here's how I want to continue it: bagel was bland.

Problem: Continue the following story.

Laura was very terrible at singing unlike Lindsey because 
Here's how I want to continue it:
Laura never grew up taking lessons.