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We were supposed to have a chemistry class, but Mr. Anderson was out of town for a meeting, so we had a history lesson instead.

我们本来要上化学课，不过安德森老师出城去开会，所以我们改上历史课。

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They know I will always come to class because I have promised myself that I will not miss a lesson during college.

他们知道我会来上课，因为我答应过我自己，在大学期间不错过一节课。

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Now, this time, I'm so sorry to say class is over. But, I have a question to ask everybody:"Do you enjoy this music lesson ?""

教师：现在，老师很不情愿地说下课的时间到了。但老师有个问题问问大家，你们喜欢这堂音乐课吗?。