题目内容
4. he heard someone shouting loudly suddenly.(强调时间状语)
在午夜时他听到有人突然大声喊叫。
4. It was at midnight that

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题目内容
4. he heard someone shouting loudly suddenly.(强调时间状语)
在午夜时他听到有人突然大声喊叫。
4. It was at midnight that