过去进行时描述正在发生的动作 — 英语填空题
题目
用所给动词的适当形式填空（注意主谓一致）。1. While the rain ___ (fall) heavily last night, my father ___ (drive) me home. 2. When the earthquake ___ (begin), we ___ (have) an English class. 3. —What ___ you ___ (do) at eight o'clock yesterday morning? —I ___ (walk) to school in the strong wind.