Jack has three black T-shirts.(对划线部分提问)

问题描述:

Jack has three black T-shirts.(对划线部分提问)
划线部分:three black T-shirts

在哪里划线?
如果在three划线
答案:How many black T-shirts does Jack have?
如果在Jack下面划线
答案:Who has three black T-shirt?
如果在black T-shirt下面划线
答案:What does Jack has?