these are tigers改为一般疑问句并作肯定回答。

Question

these are tigers改为一般疑问句并作肯定回答。

Answer 1

these are tigers改为一般疑问句并作肯定回答：
Are these tigers?
Yes, they are.

Answer 2

有be动词（am is are was were）的，变疑问直接提到句首
Are these tigers?
Yes,they are.

Answer 3

Are these tigers？ 回答：yes，these are 。