根据对话内容, 从下面方框中选择适当的单词或短语填空, 使对话内容完整正确。

A: Dad, can I ____ your digital camera?

B: Why?

A: I'd like to take some ____ on the school visit.

B: Here  ____ is. The battery hasn't been charged for months.

A: It doesn't ____ .

B: But it won't be ____  at school.

A: Promise!

   People are often killed while c____  the road. Most of them are old people and c____ . Old people are often killed because they are careless. People should look and listen b____  they cross the road. A car, a truck or a bus can't stop very q____ if it is going very fast. It will travel many meters before it s____ . Pedestrian(行人)don't know this. They think that a car can stop right away. It is h____ for a pedestrian to know how fast a car is traveling. The only s____ way to cross the road is to look at b____ ways, right and left. The correct way to cross the road is t____  walk quickly when the traffic l____ turn green.

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