Still, yet, already or just

1 . 'Have you been here long ? ' 'No , I've ____________________ arrived' .
2 . Have you ____________________ cooked a pizza ? Something smells delicious !
3 . Wow , you eat fast ! I can't believe you have ____________________ finished .
4 . No , I haven't started ____________________ .
5 . We ____________________ haven't ordered . Where's the waiter ?
6 . Have you tried the pasta ____________________ ?