what colour /what is the time 其中为什么第一句在what和colour之间不用be 动词,而第二句在what和time要用be动词

What colour is it? what colour is what colour is what colour is it? What colour is yellow What colour is your what colour it is与 what colour is it 区别 What colour is your hair? What colour is it?是什么意思? 英语翻译 what colour is it what is your pen colour What colour is her bag? what colour is the bear? What is my favourite colour Really?What colour is it? What colour is ts the what colour is the bear What is you f colour