【题目】It was reported that a little boy under a destroyed house for three days was pulled out alive at last.
A．trapped B．being trapped
C．was trapped D．had been trapped
在线课程【答案】A
【解析】考查过去分词做定语，句意：据报道，被困在毁了的房子里面三个小时的男孩最后被活着拉了出来。这里需要定语，修饰a little boy，a little boy和trap是被动关系，用过去分词做定语。选A。