that blouse is my sister's 否定句 疑问句that blouse is my sister's 改为否定句和疑问句疑问：否定：
问题描述：
that blouse is my sister's 否定句 疑问句
that blouse is my sister's 改为否定句和疑问句
疑问：
否定：
答
Is that blouse my sister's
That blouse isn‘t my sister's .