Answer:
The door
Explanation:
While many might say the fridge needs to be opened first to prepare breakfast, note that it does not say that the parents are in the house, and therefore they would need to be let in. Hence the answer of what to open first would be "the door".
A. Ends in a couplet
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The old man feels good and nice in the cold sea or warm
The answers here are The authors point of view and description if you have to only pick one pick one of those two.