阅读下面对话，掌握其大意，并根据所给首字母的提示，在标有题号的横线上写出一个英语单词

的完整、正确形式，使对话通顺。

M: Would you please tell me what you were doing when the accident happened and what you saw?

W: Yes, I was (1)d______ home from work. It was about 5:15, and there was a blue car in front of me.

     We were both driving along Harbor Road (2)w______ a small white Ford suddenly shot out of the side

     road. It shot right in front of the blue car. The driver tried to stop, but it was impossible. He (3)r______

     into the white Ford.

M: What's the (4)s______ of the car in front of you when the accident happened?

W: You mean the blue car? Well, thirty miles an hour. Of course no (5)m______ than that.

M: And the white Ford shot out without any warning (警告)?

W: Yes, that's right.

M: How can you make (6)s______ that the blue car was only doing thirty?

W: Because I was only doing thirty, and the blue car wasn't going any (7)f______ than I was.

M: Are you sure of that? Absolutely positive (肯定)?

W: Yes, I (8)a______. I'm positive.

M: How can you be so positive? Were you looking at your speed-metre when the accident happened?

W: Of course not. I was looking at the road ahead. That's how I managed to see the accident.

M: Well, if you were not looking at your speed-metre, how can you (9)p______ be sure how fast you were

     going?

W: Because I never go faster than 30 on that road, or it's (10)a______ law