If this boy had packed his bag the night before.
如果这个小男孩在昨晚就收拾好自己的书包。
If his sister had been wearing different shoes.
如果他的妹妹穿的是另外一双鞋。
Or he hadn't forgotten his lunch.
或者他没有忘带自己的午饭。
If he hadn't stopped to kiss his grandmother goodbye.
如果他没有停下来和自己的祖母吻别。
Or the neighbour's cat hadn't been on the stairs...
或是邻居家的猫不在楼梯上...
The end of this story would have been the same.
这个故事的结局并不会有什么不同。