my sister is 12.[对画线部分提问
问题描述:
my sister is 12.[对画线部分提问
答
1.如果对my sister划线提问,则为:Who is 12?
2.如果是对my划线提问,则为:Whose sister is 12?
3.如果是对12划线提问,则为:How old is your sister?
我觉得应该是第三种,