划线部分提问 There is a pen in the pencil-case.(划线部分是a)
问题描述:
划线部分提问 There is a pen in the pencil-case.(划线部分是a)
答
How many pens are there in the pencil-case
划线部分提问 There is a pen in the pencil-case.(划线部分是a)
How many pens are there in the pencil-case