题目

新概念英语原文填空（答案可能是一词或多词）An ancient bus stopped by a dry river bed and a party of famous actors and 【1】 got off. 【2】 in dark glasses and old clothes, they 【3】 special precautions so that no one should recognize them. But as they soon discovered, disguises can sometimes be too perfect. …‘It couldn’t be 【4】, Gloria,’ Brinksley Meers agreed.Snow 【5】 thick on the ground. The woman knew that the 【6】 village was miles away. When it grew dark, she turned a suitcase 【7】 a bed and put the children inside it, 【8】 them with all运用平方差公式计算：（1）（-2x-12y）（-2x+12y）；（2）（-4a-b）（-4a+b）；（3）（y+2）（y-2）（y2+4）．