根据对话情景，填入恰当的单词。（每空一词，每词1分，共6分）
A: Have you ever experienced an unforgettable event?
B: Yes, I have. That’s one of the小题1:___ memories in my life.
A: What did you experience?
B: I was hit（撞到）by a _小题2:__.
A: When did it happen?
B: Three years old.
A: _小题3:_ did it happen?
B: I went home alone after school. The traffic accident happened while I was crossing the road.
A: Didn’t you pay attention to the traffic __小题4:_?
B: I did, but the car driver didn’t. He was drunk that day. He was put into prison（坐牢）afterwards.
A: Were you小题5:_ badly?
B: Yes, there is a scar（伤疤）on my leg until now. It’s very _小题6:_to drive a car after drinking wine.
A: Yes, it really is and we should be careful when crossing the road, too.
