题目内容：

①John had an a____:he's been knocked down by a car.②the football player was Paul's h_____when he
was at school.③the old road has now been c___ up since the highway was open.

优质解答

1 accident 事故
2 hero 英雄
3 changed ( change up 固定用法）
加油!不明白再问!