将下列句子变成一般疑问句,并作简要的肯定回答和否定回答:That is his sister

Is that his sister?那是他的姐姐吗?
Yes,it is.是的.
No,it isn't.不,不是.将下列句子变成一般疑问句,并作简要的肯定回答和否定回答:She is my good friendIs she your good friend? 她是你的好朋友吗？Yes, she is. 是的，她是。No, she isn't. 不， 她不是。将下列句子变成一般疑问句,并作简要的肯定回答和否定回答:These are nice picturesAre these nice pictures? 这些是美丽的图片吗？Yes, they are. 是的，它们是。No, they aren't. 不，它们不是。