题目

下列高原与它们各自的地形特点的连线组合，正确的是 A．青藏高原—雪峰连绵                      B．内蒙古高原—地面崎岖 C．云贵高原—地势平坦                      D．黄土高原—平坦开阔 答案：AThe teacher asked the students________. [　　] A．were late for school B．not to be late for school C．must be handed in their homework D．don't break the school rules