I want to use the same tools____used in your family a few days ago.

题目

I want to use the same tools____used in your family a few days ago.
I want to use the same tools ______used in your factory a few days ago.
A.as was B.which was C.as were D.which
选C为什么?并指出其他选项哪里不对?

答案

此句中 as were used in your factory a few days ago 是定语从句,修饰 the same tools,其中as 为关系代词.由于先行词,即the same tools,是复数形式,所以关系代词在意念上也就是复数；又出于主谓一致的考虑,从句中的谓语自然就应该用were,而不能用was.这样一来,备选项 A和B 都排除了.备选项D,即 which,是可以用作关系代词的,但题干中缺少助动词,所以也不能选.