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英语
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they were playing volleyball on the beach yesterday.
为什么过去式用“playing”ing形式?
人气:476 ℃ 时间:2019-10-17 01:32:12
解答
这是过去进行时,一般来说需要有一个明确的过去的时间点或时间段才用这个时态,如果句子没有错,就说明说话者要表达的意思是:昨天(的这时,)他们正在海滩上打排球.
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