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1·Must we clean the classroom at once?

我们必须马上打扫教室吗？

2·When they get to school, they have to clean the classroom.

他们到达学校后需要打扫教室。

3·Let's clean the classroom.

让我们来打扫教室卫生。

4·Class is over. It's time to clean the classroom.

下课了。是我们打扫教室的时候了。

5·We have to clean the classroom.

我们必须打扫教室。

6·Will you clean the classroom?

你打扫一下教室好吗？

7·Clean the classroom, please.

请把教室弄干净。

8·We clean the classroom every day.

我们每天都打扫教室。

9·We clean the classroom every day.

我们每天打扫教室。

10·We will clean the classroom soon.

我们很快要打扫教室。