Bees dance their signals ,flying in certain patterns that tell other bees to find nectar for honey.
问题描述：
Bees dance their signals ,flying in certain patterns that tell other bees to find nectar for honey.
为什么不能用to呢?
patterns 后面的that 做什么成分，为什么不能是to?
答
我觉得patterns后面的that在从句中作主语,“that tell other bees to find nectar for honey”这个that从句修饰“patterns”你也可以说"flying in certain patterns to tell…",这时,“tell other bees to find nect...