7) Choose Just, yet or already.

1. He is here now. He has just/already/yet arrived.
2. Has Paul started his new job just/alreadylyet?
3. Their plane has not landed Just/already/yet?
4. Ned has just/already/yet fed his pets.
5. Her hair's wet. She's Just/already/yt washed it.
6. They have Junt/already/yet visited a lot of countries.​