1.This is my umbrella.(变为一般疑问句) this your ____________?

1.This is my umbrella.(变为一般疑问句) this your ____________? This is your room.变为一般疑问句 This is my coat .变为一般疑问句 This is my book 变为一般疑问句 This is my mother 变为一般疑问句 This is my umbrella 改成疑问句 This is your picture.（变为一般疑问句） This is my teacher.怎么变为一般疑问句? This is my shirt.（变为一般疑问句） 将下列陈述句变成一般疑问句.This is your umbrella.That's your 一般疑问句 ：BE动词/助动词+提问对象+内容 Is this your umbrella? This is my teacher变成一般疑问句.He is from the U.S.A.变为复数