Answer:
Simple:
1. Mark and Nate walked their dogs together.
2. That movie was so cool!
3. Sam, I think that your project was the best.
Compound:
1. Mark and Nate walked their dogs together, but their leashes kept on getting tangled.
2. That movie was so cool, so I want to watch it again!
3. Sam, I think that your project was the best, for it was the most interesting out of all of them.
Step-by-step explanation:
A simple sentence has a Subject, Verb ,Noun, Adjective, and or Adverb (there are many other types) as a base, and they are pretty simple. They are one sentence, and you can make a lot of them. You don't need FANBOYS to make these. These sentences are independent. That means that they can stand by themselves and still make sense. A compound sentence is 2 independent sentences smushed together by a coma then a fanboys. So you can take 2 simple sentences and connect them with ", (FANBOY)"