[解析]
W:Mister smith.It is said that you witnessed the murder.
M:Yes,it's so terrible.
W:Would you please describe what you'd seen?
M:Last night when I was driving home,I heard a scream from a corner of a building.
W:What time was it?
M:It was about 1o'clock.Then I stopped to see what happened and saw a woman was lying on the ground bleeding.I dialed110 at once.
W:Did you see the murderer?
M:He ran away.I could only remember that he was tall and thin.
W:Thank you.