过去进行时表示过去某个时刻正在进行的动作或状态。它通常由“be”动词的过去式和现在分词构成。下面是10个简单的过去进行时造句：
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我昨天下午三点正在看电视。
I was watching TV at 3 o'clock yesterday afternoon.
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他们昨天晚上七点正在吃晚饭。
They were having dinner at 7 o'clock last night.
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我们昨天晚上九点正在开会。
We were having a meeting at 9 o'clock last night.
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妈妈昨天早上六点正在做早饭。
Mom was making breakfast at 6 o'clock yesterday morning.
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昨天他们下午两点正在打篮球。
They were playing basketball at 2 o'clock yesterday afternoon.
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上周五晚上我正在看一部很有趣的电影。
Last Friday night, I was watching a very interesting movie.
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我们昨天晚上十点正在唱歌跳舞。
We were singing and dancing at 10 o'clock last night.
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昨天上午十一点她正在上英语课。
She was attending an English class at 11 o'clock yesterday morning.
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昨天晚上我正在和朋友聊天。
I was chatting with my friends last night.
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他们昨天下午五点正在散步。
They were taking a walk at 5 o'clock yesterday afternoon.
以上这些简单的句子可以帮助我们更好地理解过去进行时的用法。
