This is a green ruler 对a green ruler 提问.怎么提?

This is a green ruler 对a green ruler 提问.怎么提? It's a green ruler.对 a green ruler提问()is it. This is a ruler(对a ruler提问) ----- -----this? 英语翻译This is a ruler.（对“ruler"提问）This pen is white.(对"white"提 This is a red ruler 用a red ruler 提问 This is a green jacket.对“a green jacket”提问 This ruler is green.同意句 That's a ruler.对 a ruler 提问.Is this an apple?改为复数句子. This is a ruler.(对画线部分提问) a ruler 下面有线! this is a ruler.(对A RULER进行提问,并做肯定回答） This is a green tree (a green tree)怎么提问 this is a yellow ruler.（对划线部分提问）