.Yesterday,Ben and Kitty __________ (be) at home.They __________ _英语解答

.Yesterday,Ben and Kitty __________ (be) at home.They __________ (sing) a lot of songs.I heard them _____________ (sing) loudly.

人气：232 ℃　时间：2020-03-20 17:06:11

解答

were sang
singing
不明白的再问哟,请及时采纳,多谢!为什么不是were singing？hear sb doing听到某人正在干某事~