题目

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式，并将答案填写在答题卡相应的位置上。Peru is a country on the Pacific coast of South America with three main areas: narrow, dry, flat land 【1】 (run) along the coast, the Andes Mountains and the Amazon rainforest. In the high plains area in the southeast is Lake Titicaca, the 【2】 (high) lake in the world, on which boats can travel. In 【3】 1400s and 1500s, Peru was the centre of the powerful and 【4】 (extreme) wealthy ancient Inca Empire. But it 【5】 (rule) by已知平行四边形的三个顶点A（-2，1），B（-1，3），C（3，4），求第四个顶点D的坐标．