Commas in a series

Front

Correct sentence:

Back

I like to read about lions, tigers, and elephants.

Front

Correct sentence: Tom, Jana, and Terry like animal fables.

Back

Front

Correct sentence: A frog, a rabbit, and a duck are friends in this fable.

Back

A frog, a rabbit, and a duck are friends in this fable.

Front

Correct sentence: I like funny stories about dogs, cats, and rabbits.

Back

I like funny stories about dogs, cats, and rabbits.

Front

Correct sentence:

Back

There are books about horses, cows, and goats.

Front

Correct sentence: Did Jack, Ben, or Sue read this story?

Back

Did Jack, Ben, or Sue read this story?