My address is 34 Park Ave., New York

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Is the expression above is right?
How do you say "Ave."
1. [..vnju]
2. [..vnu]
3. [..v]

aa-veh-noo

With the stress on the first syllable.

http://dictionary.reference.com/browse/avenue?s=t
Click on the little horn/sound symbol to hear someone pronounce the word.

The expression you provided, "34 Park Ave., New York," is formatted correctly for an address.

In terms of pronouncing "Ave.," there are a few different options. The most common pronunciation is option 1: "[..vnju]." However, option 2: "[..vnu]" is also commonly used. Option 3: "[..v]" is less common, but it can be also heard in some regions or accents. Ultimately, the pronunciation can vary depending on the speaker's preference and location.