If you don't be carefully ,you will fail in the exam.改为祈使句

If you don't be carefully ,you will fail in the exam.改为祈使句
If you don't be carefully ,you will fail in the exam.改为祈使句

If you don't be carefully ,you will fail in the exam.改为祈使句
Be careful,or you will fail in the exam
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Be careful ,or you will fail in the exam.