that girl is my sister 改为一般疑问句

改一般疑问句就是把be动词,情态动词提前就可以了
因此把原句改成一般疑问句就是要把原句中的be动词提前
所以就是:Is that girl your sister?
还有就是要注意人称的变化,若原句主语为我(我们),则疑问句中要改成你(你们)
还有不懂的可以给我发消息.

Is that girl your sister?

Is that girl your sister?

Is your sister that girl ?

Is that girl your sister?

is that girl your sister

Is that girl your sister?