What colour is it?问答 — 英语填空题
题目
看情景，补全对话，每空一词。
Lily 拿到一份生日礼物，是一只书包。她问妈妈：
Lily: Mum, what colour is it?
Mum: It isn't red. It isn't yellow. It's the colour of the sea(大海).
Lily: Oh, I see! It's ___. Thank you, Mum!
再问一问：What ___ is it? 可以用来问颜色。