A:Guess what happened
while we were swimming in the lake yesterday afternoon!
B: What?
A: A boy and a girl rowed in the middle of the lake.As they stand up to change places the boy fell into the water.
B: Then what happened ?
A:A lifeguard, who was watchin everybody, saw what happened.
B:What did he do ?
A: He jumped into the water and rescued the boy.