【题目】Have you ever heard such stories about those loyal dogs ____ in this book?
A.as they are describedB.that they are described
C.as are describedD.that are described
在线课程【答案】C
【解析】
考查定语从句。句意：你听说过这本书中描述的那些忠诚的狗的故事吗？此处为定语从句，先行词stories 被such 修饰，关系代词as指代such stories并在从句中作主语，故C项正确。