mary is at home对at home提问回答
问题描述：
mary is at home对at home提问回答
答
Where is Mary?对地点提问，用where
答
对at home 提问用where. where是对地点的提问，如果对人提问则用Who, 如，(1)Where is Marry? 第二个则是(2)Who is at home? 希望能帮到你。
答
mary is at home对at home提问回答
Where is Mary?
对地点提问,用where