1) Mrs. Polanski (know) _______ ________ Peter since he was a little boy.
2) After eight hours, Angel and Roberto (arrive) _______ ________ in California. They drove there today from New Mexico, and want to go to San Diego tomorrow.
3) Nancy (live) ______ ________ in Norway for twenty-two years. She enjoys living there.
4) Ariel (be) _______ ________ a gymnast for eight years. She (break) _______ _______ six bones since she began practicing gymnastics.
5) (You, be) ________ _______ ________ to Africa before? I (hear) ________ _________ it is beautiful there. I would like to go on a safari in Kenya.
6) The letter you sent me (not, arrive) _______ _______ _________ yet. I (check) _______ ________ my mailbox for it every day. I wonder where it could be.

1. Has known2  arrived 3 has lived4 has been, has broken5 Have you been, have heard6 has not arrived yet, have cheked