which preposition is most suitable

1)Mraias Zimmer ist______ Dritten Stock
2)Die Wohnung ist_____einem Hochhaus
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a)Im Kleiderschrank _____meine Kleider(HANGS)

am; in; hängen

1)Mraias Zimmer ist______ Dritten Stock

-----> Mraias Zimmer ist__im____ dritten Stock.
or
-----> Mraias Zimmer ist__in dem ____ dritten Stock.

(Why did you capitalize "dritten" ?)

2)Die Wohnung ist_____einem Hochhaus

----> Die Wohnung ist__in___einem Hochhaus.

a)Im Kleiderschrank _____meine Kleider(HANGS)
----> Im Kleiderschrank _hången__meine Kleider.

To determine the most suitable preposition for the given sentences, we need to understand their context.

1) "Mraias Zimmer ist ____ Dritten Stock."
Here, we are talking about the location of Mraias Zimmer (Mraia's room) in a building. The suitable preposition for indicating the location within a building is "im," which means "in" in English. So, the correct preposition for this sentence would be "im."
Correct option: im

2) "Die Wohnung ist ____ einem Hochhaus."
In this sentence, we are describing the location of the Wohnung (apartment) in relation to a Hochhaus (skyscraper). Here, we need to use the preposition "in," which means "in" or "inside." So, the correct preposition for this sentence would be "in."
Correct option: in

Now, moving on to the second part of your question:

"Im Kleiderschrank ____ meine Kleider (HANGS)."
In this sentence, we need to find the correct preposition to indicate the location of "meine Kleider" (my clothes) in relation to "Im Kleiderschrank" (in the wardrobe/closet). The appropriate preposition here would be "hängen," which means "to hang." So, the correct preposition for this sentence is "hängen."
Correct option: hängen