Answer: Donde
Explanation:
Como means how.
Que means what.
The only appropriate answers are either donde or adonde. The reason it's not adonde, is because you use adonde when asking "to where" or "where to" if that makes sense. If you're simply asking where someone is, you say donde.
The answer is Cuba!
Random words to fill in the 20 spaces needed.
La madre de mi madre es mi abuela(B)
Hoy ellos van (C) al cine
Here you go!! lmk if you need the bottom part too, i am a native spanish speaker so it is easy for me