In "type what you hear" exercises, you have to type the exact words spoken by the voice, so you cannot replace je by jij.
Thank you for clarifying. Now I understand why I get some of the listening exercises wrong.
I still don't understand when sentences are to be constructed by way of inversion: have you now time is the translation. The only reason i am not completely confused is because i studied French. "Heb je"---> "as-tu." How do i know? I usually try to write my own sentences, but with this, i can't. Suggestions?