M: (0)___ you ____(know) Ken ?
S: Ken?
M: (1) _______ you _____________(see) than boy over there?
S: Which boy?
M: He (2) _______________(play) tennis with Helen.
S: Oh, I __________________(not know) him .
M: His name's Ken .He (4)_______________(play) tennis hare every Friday . He (5) _______________(be) very good at it , I (6) _____________(want) to play a game with him.