【题目】The farmer said the PLA men came to rescue timely when they _____in the snowstorm.
A. were trapping B. were being trapped
C. are trapping D. are being trapped
在线课程【答案】B
【解析】考查过去进行时的被动语态。句意：这位农民说他们在暴风雪中被困时，解放军战士及时赶来营救。根据题干中的said判断从句中需要与过去相关的时态；根据短语“be trapped in”排除A和C；句中表示“被暴风雪困住的时候”，故用过去进行时的被动语态，故选B。