let me try to answer some of your questions
when they say the term "The First daughter" they don't mean the order of having that child, what they want to say that she is the daughter of the most powerful man in america. you also hear the his wife is "The first lady" not because she was the first lady born but coz she is behind her husbend who is the leader of that country.
I think you should place an article in the first 1
Such a wonderful furniture
I dont think that we can put a noun after So so I think the correct order should be like this
The furniture is so wonderful
anyway wait for the teacher to be sure of what i said
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