If you want a good story that people would enjoy, dialogue should be like a real conversation.
2 the volcano erupted in the early afternoon of August 24,A.D.79, and the residents of Pompeii,four miles away,were able to see and hear the explosion,which sent a huge black cloud into the sky
How so . What is the thing you need help with ?
A complex sentence has one dependent clause and one independent clause.
Here's some examples;
1. After twenty years, he still had feelings for her.
2. Because my coffee was too cold, I heated it in the microwave.