英语 九年级 填空题 标准 ★ 精品

过去进行时的用法 — 英语填空题

沪教版·英语(初中) Module 2 Unit 4 Natural disasters AI 三重审校通过

题目
At 8:20 last night, the flood siren sounded. The rescue workers had started moving sandbags ten minutes earlier and had not finished yet, so when the siren sounded, they ___ (move) the sandbags.