Has anyone read the arrival ? If you have reply with a yes, I need some help with some questions

Does anyone know the answers to these two? i don’t want to have to guess, you!

If the author of the gift of the magi had made the reader aware of the gifts that jim had purchased in the beginning of the story this would be an example of

These two sentences have one difference: one has a comma. think about what each sentence means. 1. let's eat, grandma. 2. let's eat grandma. what does the first sentence mean? what does the second sentence mean?