Who does what?  (Part 2/2)

German

Which of these sentences makes the most sense?

Which short form verb would make most sense in this gap:  Niko ______ eine Aufgabe.

Which short form verb would make most sense in this gap:  Niko ______ auf Deutsch.

Which short form verb would make most sense in this gap:  Niko ______ mit Freunden.

Which word is the odd one out, in terms of pronunciation of the letter "o"?

Which short form verb would make most sense in this gap:  Niko ______ in Hamburg.