This is a red desk.对 a red desk怎样提问?

This is a red desk.对 a red desk怎样提问? This is a red desk.的问句是什么 急. this is a red jacket(对a red jacket提问) 怎样对A red desk is on the bed转换成一般疑问句? It is a desk 对desk 提问 This desk is red 改为反义疑问句 This desk is red 改为选择疑问句 This is a desk.(就a desk 提问） This a red pen.针对a red pen 怎样提问（也就是对划线部分提问） This is a desk.(对画线部分提问）desk画线 This is a red ruler 用a red ruler 提问 This is a red ruler对划线部分提问