1.Mary is a student.画线句提问 划线部分是Mary 2.l

问题描述:

1.Mary is a student.画线句提问 划线部分是Mary 2.l
1.Mary is a student.画线句提问 划线部分是Mary 2.l went back beceucse the door dosed.划线部分是beceucse the door dosed

who is a student?第二句呢?Why did Mary go back ?