Answer:
To you, rude would I never be, though I flag my tongue for all to see. What am I?
I love spinach.
I have a small hill with seven holes. What am I?
Things here are usually tagged with red stickers.
I come with a train and go with a train and the train doesn't need me but can't go without me.
Give it food and it will live, give it water and it will die.