We went to school on time.
Please pick up the book on the ground.
You just have a rest if you are tired.
You can't swim in the river any longer. It's danger.
Who are you waiting for? Liu Dong.
We came to school on time
Please pick the books up off the floor
If you are tired, rest
You can't swim in the river. It is dangerous!
Who are you waiting for? liudong
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