A: Guess what happened while we (swim ) ..WERE SWIMMING......in the lake yesterday afternoon !
B: What?
A: A boy and a girl (row)...WERE ROWING....in the middle of the lake. As they
(stand up)...STOOD UP........to change places, the boy (fall) ...FELL.........into
the water .
B: Then what (happen)...HAPPENED.....?
A: A lifeguard, who (watch)...WAS WATCHING.....everybody, (see)...SAW.... what happened .
B: What (do)..DID...he..DO...?
A:He (jump)...JUMPED.....into the water and (rescue)...RESCUED.....the boy.