此英语句子有错吗？

High buildings had taken over, the street was full of children, and disturbing noises shook the air。

此句出现在教科书里，理应没错，但是High buildings had taken over, the street was full of children,这部分前后都是两个简单句，怎么能就这样没有连词就用在一起呢？

这是一个含有三个分句的并列句，连词and置于最后两个分句之间，第一个人分句用逗号隔开即可。