Complete the gossiping friends' text messages by choosing the correct echo word for each gap to show their shock.

Alex: "My sister accidentally invited our boss to the family barbecue." Sam: "Wait, she did? That sounds incredibly awkward!"

Alex: "Yeah, and he actually showed up wearing a giant hotdog costume." Sam: "He wore a what? I can't believe it!"

Alex: "I know! We haven't stopped laughing about it since." Sam: "Really, you haven't? I would be hiding under a table!"

Sam: "Wait, she did? That sounds incredibly awkward!"

Echo questions repeat the auxiliary verb from the previous statement to show surprise. Since "invited" is in the past simple, we use the past auxiliary did.

Sam: "He wore a what? I can't believe it!"

When we are surprised by an object or a thing in a sentence, we replace it with a Wh-word (in this case, what) and repeat the structure to express disbelief.

Sam: "Really, you haven't? I would be hiding under a table!"

The previous sentence uses the present perfect negative ("We haven't stopped"). To echo it, we simply repeat the exact same auxiliary and tense: haven't.