They found a lot of people __under the houses.

问题描述:

They found a lot of people __under the houses.
C.trapped D.are trapped 为什么?(U4.3)

C. 过去分词短语trapped under the houses 作people的后置定语,trapped 此处是过去分词,表示被动的意义,可理解为...people(who are)trapped under the houses. 这个句子只有一个谓语动词found,(过去分词trapped此处是非谓语动词)如果将a lot of people __under the houses看作found的宾语从句,空格也只能用were trapped(配合过去时)! 因而是C!