Explain what I need to do and help me answer the questions for TONS OF POINTS

Va rog traduceti ordnen sie die wörter in gruppen ergänzen sie den artikel und den plural

Jamie here’s a high-pitched sound that brain changes to a low pitched sound.what is the most likely occurring?

Iam a german native. my grandpa and grandma and i are going to germany to visit family and friends. my grandpa set some rules though that i have to get done before i can go. i have to be done with my 11th grade work and i have to be fluent in german i know some of the basics but i am not fluent. i am just worried i am not going to get it all done in time. any advice?