Hi. Echo questions, or echoes. Let's start this by looking at exactly what an echo is. Imagine: I'm in Spain, and I'm standing in front of a poster that says "Welcome to sunny Spain" and it's pouring with rain. I'd look at the poster, I'd look at my friend and say, "Welcome to sunny Spain." Okay, I'm being ironic about what the poster says and the weather. That is an echo. Okay? I could make it more ironic by making it a question. "Welcome to sunny Spain?" Okay, there is more irony. Okay, this is another; this is now an echo question. Now, we can form this in various other ways by changing parts of the sentence for question words.