Rewrite the following sentences, so that their meaning stays the same

Rewrite the following sentences, so that their meaning stays the same.
 
1. Don't play computer games for too long. You will harm your eyes.
 
If you play _______________________________.
 
2. Be careful with your diet, or you will get overweight.
 
You will _________________________________.
 
3. We'll go to the beach unless it rains.
 
If ________________________________________.
 
4. If you don’t hurry up, you will be late.
 
Unless ____________________________________.
 
5. Unless the teacher explains the lesson again, we won't understand it very well.
 
If ________________________________________.
  Lưu ý : làm cả cấu trúc câu câu hỏi và câu trả lời mình cần gấp aaa