How can I pass an alcohol test

The answer to that question is simple. Avoid alcohol in all forms.

Pass on the alcoholic drinks and pass the test.

Make sure you avoid ALL forms of alcohol:
Rum balls,
Red wine sauces
Hand sanitizers
Some hair products
Some body care products.

You have to be vigiliant on what products you consume, orally and externally, because you can refuse all alcoholic beverages but if you use other products with alcohol in them you could fail. Be smart. Also realize that you'll only be tested for a small period and if you fail that period will grow. You can abstain for a little.