I saw them ten minutes ago, so they must have gone/can't have gone far.They're speaking...

Question

I saw them ten minutes ago, so they must have gone/can't have gone far.They're speaking Arabic, so they might be/ can't be from the UAE.I rang her but she didn't answer. She might have gone/can't have gone to bed early. You've just eaten. You can't be/might be hungry already!

Answer 1

1.they can't have gone. ..
2. they might be
3. might have gone
4. you can't be hundry

Answer 2

1) can`t have gone
2) might be
3) have gone
4) can`t be