试题题干
Word Formations
Complete the following sentence with the proper form of the word in the bracket.
(mystery) There are many 
stories about the Egyptian pyramids.
参考答案
试题解析
此处缺少形容词。
stories是名词，需要形容词修饰名词。所以变mystery为形容词mysterious。
句意：关于埃及金字塔有很多神秘的故事。