Spanish language Q&A Forum

Can I say "Adivino que si" or "Adivino que no"? Thanks. 

I just saw it in the forum and I think it should be added to the lesson since it is quite common. 

Question: ¡Estén atentos! means: Pay attention!

I don't see anywhere on the lesson that explains this usage. It seems like it's being used as a command/order.

Sorry, I understand my mistake now - please disregard.

Could you say 'poner una chaquetta' instead of 'llevar una chaquetta'?

I appear to be stuck at 96.2% no matter how many times I answer correctly.