That's a ruler.对 a ruler 提问.Is this an apple?改为复数句子.

问题描述:

That's a ruler.对 a ruler 提问.Is this an apple?改为复数句子.

What is that?
Are these apples?

what's that?
Are these apples?
针对名词物品提问时用疑问词what
is对应的复数形式为are
this对应的复数形式为these