it is my watch变复数形式 the backpack is under the table.就画线部分提问

题目

it is my watch变复数形式 the backpack is under the table.就画线部分提问

答案

they are my watches.他们是我的表.
应该是对地点提问：
where is the backpack?被包在哪里.
背包在桌底下.