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.Yesterday,Ben and Kitty __________ (be) at home.They __________ (sing) a lot of songs.I heard them _____________ (sing) loudly.
人气:475 ℃ 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~
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