The cat killed the rat________ate the meat________lay in the house________Jack built.
A．who；that；where B．that；/；that
C．/；that；where D．that；that；/
The cat killed the rat________ate the meat________lay in the house________Jack built.
A．who；that；where B．that；/；that
C．/；that；where D．that；that；/
答案: D
在第一个从句中，the rat指物，且在从句中 作主语，故不能用who，也不能省略；第二个从句也是如此；第三个从句中，关系代词作宾语，可以省略。