Question

They+are+both+my+good+friends+.如何改为一般疑问句并做出肯定和否定回？

Answer 1

一般陈述句改一般疑问句，系表结构be动词提前就行，即：Are they both your good friends？肯定回复：Yes，they are 否定回复：No， they aren't

Answer 2

Are they both my good friends? 一般疑问句 Yes，they are. 肯定回答 No，they are not. 否定回答。

Answer 3

一般疑问句:Are they both your good friends？
肯定回答:Yes,they are.
否定回答:No,they aren't.

Answer 4

一般疑问句：Are they both my good friends？
他们都是我的好朋友吗？
肯定回答：Yes，they are.
否定回答：No，they are not.
变一般疑问句，be动词are提前至句首，其余句子成分按原次序保持不变即可，再按要求进行肯定否定回答。
一般疑问句是疑问句的一种。它一般只用Yes…（是）或No…（否）来回答的句子。朗读一般疑问句时用疑问调，而一般疑问句的简略答语则用感叹调。

Answer 5

先弄清原句的主谓结构，主语是They，谓语是be动词are，将句式由陈述句肯定句式变更为一般疑问句式时只要将be动词前置，后面的部分顺延，人称代词可以做相应变换。
Are they both your good friends?
Yes, they are.
No, they aren't.