Alien means something is completely foreign to you. You don't necessarily know anything about it while familiar means it's something you know well. I am familiar with the Hunger Games series because I've read it. However, I have never read Don't Cry so its alien to me. They are complete opposite words, they're antonyms.
Yo friendly neighborhood cheater here. best advice I can give you is to use the socratic app its free and litterally will answer this for you thats how most people respond to awnsers on brainly. Im just tryna save you time.