补全对话，每空一词。
A: Can you tell me what you saw here today, about the car accident?
B: Well, I was __1 down the street when a car went very fast and hit the old man.
A: Where did it 2 ?
B: Just over there, at the street corner.
A: 3 happened then?
B: Two policemen came soon. They 4 the driver to send the old man 5 hospital.
A: Was the old man hurt badly?
B: I think _6 .He couldn't stand up 7 the accident. And there was some blood(血) in the street.
A: So, what did you do __8 ?
B: I saw the policemen 9 the old man on a car to hospital and I left. I didn't know what was 10 on
later.
A: Thanks.
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6. ________7. ________8. ________9. ________10. ________