I want to use the Hong Kong and Macao Pass to go to Hong Kong, and then go from Hong Kong to the United States. I have an American visa.

You don't need a Hong Kong and Macao pass, just a passport. This is a typical transit through Hong Kong. You can enter Hong Kong with your passport and stay in Hong Kong for no more than 7 days.

Answer supplement:

I see. Show him your passport. He will let you leave Hong Kong with a pass, because you entered Hong Kong with a pass. The reason why I want to see my passport is because you want to go to America, and you need to use your passport to go to America. However, you must return to Hong Kong and enter the Mainland within seven days before you can use the attached travel policy in Hong Kong (that is, you said you would return to Hong Kong for a short stay), and it does not violate the entry and exit laws of the Mainland. It's strange that you have a passport, visa and plane ticket, why do you need a pass? It's totally unnecessary, it's even more troublesome. ...