What does "do they speak?" mean in English for Spanish?

In English for Spanish, "do they speak?" means:

¿ellos hablan?

Listen to "do they speak?": (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 3
• English for Spanish 3, Level 1, Scene 4