When the school bus arrived at the zoo the bus door open and all the children rushed out

问题补充：

When the school bus arrived at the zoo, the bus door open and all the children rushed out.

A. shocked

B. destroyed

C. attacked

D. burst

答案：

A. shocked

B. destroyed

C. attacked

(答案→)D. burst

解析：词义辨析。Shocked震惊；destroyed毁坏；attacked袭击；burst爆发，门或盖子突然打开。句意：当校车达到动物园，车门突然开了，所有的孩子都冲了下去。所以选D。