What does "Yes, I've never been to the U.S. Before." mean in English for Spanish?

In English for Spanish, "Yes, I've never been to the U.S. Before." means:

Sí, nunca he estado en los EE.UU. hasta ahora.

Listen to "Yes, I've never been to the U.S. Before.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 3, Level 1, Scene 6
• English for Spanish 2, Level 1, Scene 1