The correct answers are the following.
Combine the simple sentences below with a coordinating conjunction to create a compound sentence:
Batman is a hero. He saves the city from a lot of criminals.
A=Batman is a hero, so he saves the city from a lot of criminals.
There was a meteor shower. The crew did not know how to avoid the meteors.
A=There was a meteor shower and the crew did not know how to avoid the meteors.
Gillian did not like to read. She was not very good at it.
A=Gillian did not like to read, so she was not very good at it.
In Grammar, we use conjunctions to connect words, thoughts, phrases, ideas, and sentences.
The most common conjunctions are so, and, but, neither, yet, whether, as.