Final answer:
Commas are needed in the examples to separate independent clauses or items in a list.
Step-by-step explanation:
A coordinating conjunction is a conjunction that connects words, phrases, and clauses that are coordinate, or equal to each other.
In each sentence, a comma is needed to separate two independent clauses or to separate items in a list.
Here are the corrected sentences:
- She usually eats vegetables, because she wants to be healthy.
- John opens the door, and they begin to come in.
- We pray heartedly, and the typhoon stopped.
- The crew smiled at us, when she saw us coming.
- The rainy season is coming, so I need to buy new supplies.
- I want to go to the market, but I don’t have a ride.
- You need to fill the container, unless you need an extra companion.
- I’ll watch TV, while I’ll eat my lunch.
- I love mango juice, but I do not eat mango fruit.
- I told them that I’m their new adviser.