Answer:
1. already
2. already
3. yet
4. already
5. already
1. I just ate a snack so I am not hungry yet!
2. My teacher just left the room 2 minutes ago.
Explanation:
B)
1. - No, he has already left
2. - Well, we know each other. We have already met
3. - Granny, have you finished cooking dinner yet? I'm hungry
4. - Mum, I've just done it.
5. - No, he isn't. He has already bought it
