when he got home ,his parents _.were sleep were asleep are sleepi_英语解答

when he got home ,his parents _.were sleep were asleep are sleeping
为什么?

人气：213 ℃　时间：2019-10-11 19:22:06

解答

were sleeping.当他回家时他的父母正在睡觉.用过去进行时.从上面三个答案中选were asleep.sorry.when引导的是过去式后面也应相应用过去式。