该上课了，我们停止了讲话。
八点我们该上课了。
然后他转身对梅根说：“宝贝，快去换衣服，该上课了。”
He turned to Megan and said, "Honey, go and put on your leotard. It's time for your class."
该上课了，但仍然有一些男孩子在那儿大声谈话。
It's time for class, but there are still some boys talking loudly over there.
你朋友来到学校时情绪很糟，铃声响了你该上课了。你会。
Your friend comes to school very upset. The bell rings so you need to go to.
是该上课的时候了。
是该上课的时候了。
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