"Escribe tu fecha de nacimiento aquí."
Translation:Write down your date of birth here.
Well, it kind of means two different things in English too. If someone asks them your birthday you may say September 22nd. If they say Birth date you say September 22nd 1986. Very small difference but it's there.
ah, the imperative form of escribir is indeed escribe. the imperative hasn't been taught in these lessons so far...so i'm not sure why they have this...
However the imperative is used for commands, such as 'clean your room', etc. Apparently we'll have to memorizing the imperative in the future as well! :) Hope that helped