精选优质文档-倾情为你奉上过去进行时练习题 用动词的适当形式填空。1. While we _(wait) for the bus, a girl _(run) up to us.2. I _ (telephone) a friend when Bob _ (come) in.3. Jim _ (jump) on the bus as it _(move) away.4. We _(test) the new machine when the electricity _ (go) off.5. She _(not want) to stay in bed while the others _(all, work) in the fields.6. While mother _(put) Cathy to bed, the door bell _ (ring).7. As I _ (walk) in the park, it _(begin)
